Index: lib/fuzzer/FuzzerIOPosix.cpp
===================================================================
--- lib/fuzzer/FuzzerIOPosix.cpp
+++ lib/fuzzer/FuzzerIOPosix.cpp
@@ -54,7 +54,7 @@
 
   DIR *D = opendir(Dir.c_str());
   if (!D) {
-    Printf("No such directory: %s; exiting\n", Dir.c_str());
+    Printf("%s: %s; exiting\n", strerror(errno), Dir.c_str());
     exit(1);
   }
   while (auto E = readdir(D)) {
Index: test/fuzzer/fuzzer-dirs.test
===================================================================
--- test/fuzzer/fuzzer-dirs.test
+++ test/fuzzer/fuzzer-dirs.test
@@ -17,5 +17,5 @@
 RUN: rm -rf %t/SUB1
 
 RUN: not %t-SimpleTest NONEXISTENT_DIR 2>&1 | FileCheck %s --check-prefix=NONEXISTENT_DIR
-NONEXISTENT_DIR: No such directory: NONEXISTENT_DIR; exiting
+NONEXISTENT_DIR: No such file or directory: NONEXISTENT_DIR; exiting