Index: test/Analysis/NewDelete-path-notes.cpp
===================================================================
--- test/Analysis/NewDelete-path-notes.cpp
+++ test/Analysis/NewDelete-path-notes.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,unix.Malloc -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,unix.Malloc -analyzer-output=text -analyzer-config c++-allocator-inlining=true -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,unix.Malloc -analyzer-output=plist %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/NewDelete-path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/NewDelete-path-notes.cpp.plist
 
 void test() {
   int *p = new int;
Index: test/Analysis/conditional-path-notes.c
===================================================================
--- test/Analysis/conditional-path-notes.c
+++ test/Analysis/conditional-path-notes.c
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference -analyzer-output=text -verify
 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference -analyzer-output=plist -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/conditional-path-notes.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/conditional-path-notes.c.plist
 
 void testCondOp(int *p) {
   int *x = p ? p : p;
Index: test/Analysis/copypaste/plist-diagnostics-notes-as-events.cpp
===================================================================
--- test/Analysis/copypaste/plist-diagnostics-notes-as-events.cpp
+++ test/Analysis/copypaste/plist-diagnostics-notes-as-events.cpp
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-output=plist -analyzer-config notes-as-events=true -o %t.plist -std=c++11 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-diagnostics-notes-as-events.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-diagnostics-notes-as-events.cpp.plist
 
 void log();
 
Index: test/Analysis/copypaste/plist-diagnostics.cpp
===================================================================
--- test/Analysis/copypaste/plist-diagnostics.cpp
+++ test/Analysis/copypaste/plist-diagnostics.cpp
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-output=plist -o %t.plist -std=c++11 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-diagnostics.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-diagnostics.cpp.plist
 
 void log();
 
Index: test/Analysis/cxx-for-range.cpp
===================================================================
--- test/Analysis/cxx-for-range.cpp
+++ test/Analysis/cxx-for-range.cpp
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core -analyzer-output=plist-multi-file -o %t.plist -verify -analyzer-config eagerly-assume=false %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/cxx-for-range.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/cxx-for-range.cpp.plist
 
 extern void work();
 
Index: test/Analysis/diagnostics/deref-track-symbolic-region.c
===================================================================
--- test/Analysis/diagnostics/deref-track-symbolic-region.c
+++ test/Analysis/diagnostics/deref-track-symbolic-region.c
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file  %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/deref-track-symbolic-region.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/deref-track-symbolic-region.c.plist
 
 struct S {
   int *x;
Index: test/Analysis/diagnostics/report-issues-within-main-file.cpp
===================================================================
--- test/Analysis/diagnostics/report-issues-within-main-file.cpp
+++ test/Analysis/diagnostics/report-issues-within-main-file.cpp
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -analyzer-output=plist-multi-file -analyzer-config report-in-main-source-file=true %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/report-issues-within-main-file.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/report-issues-within-main-file.cpp.plist
 #include "Inputs/include/report-issues-within-main-file.h"
 
 void mainPlusHeader() {
Index: test/Analysis/diagnostics/undef-value-caller.c
===================================================================
--- test/Analysis/diagnostics/undef-value-caller.c
+++ test/Analysis/diagnostics/undef-value-caller.c
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist -o %t %s
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/undef-value-caller.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/undef-value-caller.c.plist
 
 #include "undef-value-callee.h"
 
Index: test/Analysis/diagnostics/undef-value-param.c
===================================================================
--- test/Analysis/diagnostics/undef-value-param.c
+++ test/Analysis/diagnostics/undef-value-param.c
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file  %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/undef-value-param.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/undef-value-param.c.plist
 
 void foo_irrelevant(int c) {
     if (c)
Index: test/Analysis/diagnostics/undef-value-param.m
===================================================================
--- test/Analysis/diagnostics/undef-value-param.m
+++ test/Analysis/diagnostics/undef-value-param.m
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=plist-multi-file %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/undef-value-param.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/undef-value-param.m.plist
 
 typedef signed char BOOL;
 @protocol NSObject  - (BOOL)isEqual:(id)object; @end
Index: test/Analysis/edges-new.mm
===================================================================
--- test/Analysis/edges-new.mm
+++ test/Analysis/edges-new.mm
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,deadcode.DeadStores,osx.cocoa.RetainCount,unix.Malloc,unix.MismatchedDeallocator -analyzer-output=plist -o %t -w %s
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/edges-new.mm.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/edges-new.mm.plist
 
 //===----------------------------------------------------------------------===//
 // Forward declarations (from headers).
Index: test/Analysis/generics.m
===================================================================
--- test/Analysis/generics.m
+++ test/Analysis/generics.m
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.ObjCGenerics,alpha.core.DynamicTypeChecker -verify -Wno-objc-method-access %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.ObjCGenerics,alpha.core.DynamicTypeChecker -verify -Wno-objc-method-access %s -analyzer-output=plist -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/generics.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/generics.m.plist
 
 #if !__has_feature(objc_generics)
 #  error Compiler does not support Objective-C generics?
Index: test/Analysis/inline-plist.c
===================================================================
--- test/Analysis/inline-plist.c
+++ test/Analysis/inline-plist.c
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference,core.DivideZero -fblocks -analyzer-output=text -analyzer-config suppress-null-return-paths=false -verify -analyzer-config eagerly-assume=false %s
 // RUN: %clang_analyze_cc1 -analyzer-config eagerly-assume=false %s -analyzer-checker=core.NullDereference,core.DivideZero -fblocks -analyzer-output=plist -analyzer-config suppress-null-return-paths=false -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/inline-plist.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/inline-plist.c.plist
 
 // <rdar://problem/10967815>
 void mmm(int y) {
Index: test/Analysis/inline-unique-reports.c
===================================================================
--- test/Analysis/inline-unique-reports.c
+++ test/Analysis/inline-unique-reports.c
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference -analyzer-output=plist -o %t > /dev/null 2>&1
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/inline-unique-reports.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/inline-unique-reports.c.plist
 
 static inline bug(int *p) {
   *p = 0xDEADBEEF;
Index: test/Analysis/inlining/eager-reclamation-path-notes.c
===================================================================
--- test/Analysis/inlining/eager-reclamation-path-notes.c
+++ test/Analysis/inlining/eager-reclamation-path-notes.c
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/eager-reclamation-path-notes.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/eager-reclamation-path-notes.c.plist
 
 void use(int *ptr, int val) {
   *ptr = val; // expected-warning {{Dereference of null pointer (loaded from variable 'ptr')}}
Index: test/Analysis/inlining/eager-reclamation-path-notes.cpp
===================================================================
--- test/Analysis/inlining/eager-reclamation-path-notes.cpp
+++ test/Analysis/inlining/eager-reclamation-path-notes.cpp
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist
 
 typedef struct {
   int getValue();
Index: test/Analysis/inlining/path-notes.c
===================================================================
--- test/Analysis/inlining/path-notes.c
+++ test/Analysis/inlining/path-notes.c
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config suppress-null-return-paths=false -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config suppress-null-return-paths=false %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/path-notes.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/path-notes.c.plist
 
 void zero(int **p) {
   *p = 0;
Index: test/Analysis/inlining/path-notes.cpp
===================================================================
--- test/Analysis/inlining/path-notes.cpp
+++ test/Analysis/inlining/path-notes.cpp
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config c++-inlining=destructors -std=c++11 -verify -Wno-tautological-undefined-compare %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config c++-inlining=destructors -std=c++11 %s -o %t.plist -Wno-tautological-undefined-compare
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/path-notes.cpp.plist
 
 class Foo {
 public:
Index: test/Analysis/inlining/path-notes.m
===================================================================
--- test/Analysis/inlining/path-notes.m
+++ test/Analysis/inlining/path-notes.m
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.NilArg,osx.cocoa.RetainCount -analyzer-output=text -analyzer-config suppress-null-return-paths=false -fblocks -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.NilArg,osx.cocoa.RetainCount -analyzer-output=plist-multi-file -analyzer-config suppress-null-return-paths=false -fblocks %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/path-notes.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/path-notes.m.plist
 
 typedef struct dispatch_queue_s *dispatch_queue_t;
 typedef void (^dispatch_block_t)(void);
Index: test/Analysis/lit.local.cfg
===================================================================
--- test/Analysis/lit.local.cfg
+++ test/Analysis/lit.local.cfg
@@ -9,5 +9,10 @@
 config.test_format = analyzer_test.AnalyzerTest(
         config.test_format.execute_external, config.use_z3_solver)
 
+# Diff command used by Clang Analyzer tests (when comparing .plist files
+# with reference output)
+config.substitutions.append(('%diff_plist',
+    'diff -u -w -I "<string>/" -I "<string>.:" -I "version" -'))
+
 if not config.root.clang_staticanalyzer:
     config.unsupported = True
Index: test/Analysis/method-call-path-notes.cpp
===================================================================
--- test/Analysis/method-call-path-notes.cpp
+++ test/Analysis/method-call-path-notes.cpp
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file  %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/method-call-path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/method-call-path-notes.cpp.plist
 
 // Test warning about null or uninitialized pointer values used as instance member
 // calls.
Index: test/Analysis/model-file.cpp
===================================================================
--- test/Analysis/model-file.cpp
+++ test/Analysis/model-file.cpp
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-config faux-bodies=true,model-path=%S/Inputs/Models -analyzer-output=plist-multi-file -verify %s -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/model-file.cpp.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/model-file.cpp.plist
 
 typedef int* intptr;
 
Index: test/Analysis/null-deref-path-notes.m
===================================================================
--- test/Analysis/null-deref-path-notes.m
+++ test/Analysis/null-deref-path-notes.m
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-store=region -analyzer-output=text -fblocks -verify -Wno-objc-root-class %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-store=region -analyzer-output=plist-multi-file -fblocks -Wno-objc-root-class %s -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/null-deref-path-notes.m.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/null-deref-path-notes.m.plist
 
 @interface Root {
 @public
Index: test/Analysis/nullability-notes.m
===================================================================
--- test/Analysis/nullability-notes.m
+++ test/Analysis/nullability-notes.m
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -fblocks -analyzer-checker=core,nullability.NullPassedToNonnull,nullability.NullReturnedFromNonnull,nullability.NullablePassedToNonnull,nullability.NullableReturnedFromNonnull,nullability.NullableDereferenced -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -fblocks -analyzer-checker=core,nullability.NullPassedToNonnull,nullability.NullReturnedFromNonnull,nullability.NullablePassedToNonnull,nullability.NullableReturnedFromNonnull,nullability.NullableDereferenced -analyzer-output=plist -o %t.plist %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/nullability-notes.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/nullability-notes.m.plist
 
 #include "Inputs/system-header-simulator-for-nullability.h"
 
Index: test/Analysis/objc-arc.m
===================================================================
--- test/Analysis/objc-arc.m
+++ test/Analysis/objc-arc.m
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.cocoa.RetainCount,deadcode -verify -fblocks -analyzer-opt-analyze-nested-blocks -fobjc-arc -analyzer-output=plist-multi-file -o %t.plist %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/objc-arc.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/objc-arc.m.plist
 
 typedef signed char BOOL;
 typedef struct _NSZone NSZone;
Index: test/Analysis/plist-macros.cpp
===================================================================
--- test/Analysis/plist-macros.cpp
+++ test/Analysis/plist-macros.cpp
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -analyzer-output=plist-multi-file %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-macros.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-macros.cpp.plist
 
 
 typedef __typeof(sizeof(int)) size_t;
Index: test/Analysis/plist-output-alternate.m
===================================================================
--- test/Analysis/plist-output-alternate.m
+++ test/Analysis/plist-output-alternate.m
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount,alpha.core -fblocks -analyzer-output=plist -o %t %s
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-output-alternate.m.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/plist-output-alternate.m.plist
 
 void test_null_init(void) {
   int *p = 0;
Index: test/Analysis/plist-output.m
===================================================================
--- test/Analysis/plist-output.m
+++ test/Analysis/plist-output.m
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -analyzer-config eagerly-assume=false %s -analyzer-checker=osx.cocoa.RetainCount,deadcode.DeadStores,core -analyzer-output=plist -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-output.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-output.m.plist
 
 void test_null_init(void) {
   int *p = 0;
Index: test/Analysis/retain-release-path-notes.m
===================================================================
--- test/Analysis/retain-release-path-notes.m
+++ test/Analysis/retain-release-path-notes.m
@@ -1,6 +1,6 @@
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -analyzer-output=plist-multi-file %s -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/retain-release-path-notes.m.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/retain-release-path-notes.m.plist
 
 /***
 This file is for testing the path-sensitive notes for retain/release errors.
Index: test/Analysis/unix-fns.c
===================================================================
--- test/Analysis/unix-fns.c
+++ test/Analysis/unix-fns.c
@@ -1,5 +1,5 @@
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,unix.API,osx.API,optin.portability %s -analyzer-store=region -analyzer-output=plist -analyzer-config faux-bodies=true  -fblocks -verify -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/unix-fns.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/unix-fns.c.plist
 // RUN: mkdir -p %t.dir
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.API,osx.API,optin.portability -analyzer-output=html -analyzer-config faux-bodies=true -fblocks -o %t.dir %s
 // RUN: rm -fR %t.dir