diff --git a/lld/test/ELF/undef.s b/lld/test/ELF/undef.s
--- a/lld/test/ELF/undef.s
+++ b/lld/test/ELF/undef.s
@@ -10,57 +10,59 @@
 # RUN: not ld.lld -pie %t.o %t2.a %t3.o %t4.o -o %t.exe 2>&1 \
 # RUN:   | FileCheck %s --implicit-check-not="error:" --implicit-check-not="warning:"
 
-# CHECK: error: undefined symbol: foo
-# CHECK: >>> referenced by undef.s
-# CHECK:                   {{.*}}:(.text+0x1)
+# CHECK:      error: undefined symbol: foo
+# CHECK-NEXT: >>> referenced by undef.s
+# CHECK-NEXT:                   {{.*}}:(.text+0x1)
 
-# CHECK: error: undefined symbol: bar
-# CHECK: >>> referenced by undef.s
-# CHECK: >>>               {{.*}}:(.text+0x6)
+# CHECK:      error: undefined symbol: bar
+# CHECK-NEXT: >>> referenced by undef.s
+# CHECK-NEXT: >>>               {{.*}}:(.text+0x6)
 
-# CHECK: error: undefined symbol: foo(int)
-# CHECK: >>> referenced by undef.s
-# CHECK: >>>               {{.*}}:(.text+0x10)
+# CHECK:      error: undefined symbol: foo(int)
+# CHECK-NEXT: >>> referenced by undef.s
+# CHECK-NEXT: >>>               {{.*}}:(.text+0x10)
 
-# CHECK: error: undefined symbol: vtable for Foo
-# CHECK: the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)
+# CHECK:      error: undefined symbol: vtable for Foo
+# CHECK-NEXT: >>> referenced by undef.s
+# CHECK-NEXT: >>>               {{.*}}:(.text+0x15)
+# CHECK-NEXT: the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)
 
 # Check that this symbol isn't demangled
 
-# CHECK: error: undefined symbol: __Z3fooi
-# CHECK: >>> referenced by undef.s
-# CHECK: >>>               {{.*}}:(.text+0x1A)
+# CHECK:      error: undefined symbol: __Z3fooi
+# CHECK-NEXT: >>> referenced by undef.s
+# CHECK-NEXT: >>>               {{.*}}:(.text+0x1A)
 
-# CHECK: error: undefined symbol: zed2
-# CHECK: >>> referenced by {{.*}}.o:(.text+0x0) in archive {{.*}}2.a
+# CHECK:      error: undefined symbol: zed2
+# CHECK-NEXT: >>> referenced by {{.*}}.o:(.text+0x0) in archive {{.*}}2.a
 
-# CHECK: error: undefined symbol: zed3
-# CHECK: >>> referenced by undef-debug.s:3 (dir{{/|\\}}undef-debug.s:3)
-# CHECK: >>>               {{.*}}.o:(.text+0x0)
+# CHECK:      error: undefined symbol: zed3
+# CHECK-NEXT: >>> referenced by undef-debug.s:3 (dir{{/|\\}}undef-debug.s:3)
+# CHECK-NEXT: >>>               {{.*}}.o:(.text+0x0)
 
-# CHECK: error: undefined symbol: zed4
-# CHECK: >>> referenced by undef-debug.s:7 (dir{{/|\\}}undef-debug.s:7)
-# CHECK: >>>               {{.*}}.o:(.text.1+0x0)
+# CHECK:      error: undefined symbol: zed4
+# CHECK-NEXT: >>> referenced by undef-debug.s:7 (dir{{/|\\}}undef-debug.s:7)
+# CHECK-NEXT: >>>               {{.*}}.o:(.text.1+0x0)
 
-# CHECK: error: undefined symbol: zed5
-# CHECK: >>> referenced by undef-debug.s:11 (dir{{/|\\}}undef-debug.s:11)
-# CHECK: >>>               {{.*}}.o:(.text.2+0x0)
+# CHECK:      error: undefined symbol: zed5
+# CHECK-NEXT: >>> referenced by undef-debug.s:11 (dir{{/|\\}}undef-debug.s:11)
+# CHECK-NEXT: >>>               {{.*}}.o:(.text.2+0x0)
 
 # Show that all line table problems are mentioned as soon as the object's line information
 # is requested, even if that particular part of the line information is not currently required.
 # Also show that the warnings are only printed once.
-# CHECK: warning: parsing line table prologue at 0x00000000 should have ended at 0x00000038 but it ended at 0x00000037
-# CHECK: warning: last sequence in debug line table is not terminated!
-# CHECK: error: undefined symbol: zed6a
-# CHECK: >>> referenced by {{.*}}tmp4.o:(.text+0x0)
-# CHECK: error: undefined symbol: zed6b
-# CHECK: >>> referenced by {{.*}}tmp4.o:(.text+0x8)
+# CHECK:      warning: parsing line table prologue at 0x00000000 should have ended at 0x00000038 but it ended at 0x00000037
+# CHECK-NEXT: warning: last sequence in debug line table is not terminated!
+# CHECK:      error: undefined symbol: zed6a
+# CHECK-NEXT: >>> referenced by {{.*}}tmp4.o:(.text+0x0)
+# CHECK:      error: undefined symbol: zed6b
+# CHECK-NEXT: >>> referenced by {{.*}}tmp4.o:(.text+0x8)
 
 # Show that a problem with one line table's information doesn't affect getting information from
 # a different one in the same object.
-# CHECK: error: undefined symbol: zed7
-# CHECK: >>> referenced by undef-bad-debug2.s:11 (dir2{{/|\\}}undef-bad-debug2.s:11)
-# CHECK: >>>               {{.*}}tmp4.o:(.text+0x10)
+# CHECK:      error: undefined symbol: zed7
+# CHECK-NEXT: >>> referenced by undef-bad-debug2.s:11 (dir2{{/|\\}}undef-bad-debug2.s:11)
+# CHECK-NEXT: >>>               {{.*}}tmp4.o:(.text+0x10)
 
 # RUN: not ld.lld %t.o %t2.a -o %t.exe -no-demangle 2>&1 | \
 # RUN:   FileCheck -check-prefix=NO-DEMANGLE %s