Merging r354402:

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r354402 | eugenis | 2019-02-20 00:41:42 +0100 (Wed, 20 Feb 2019) | 3 lines

[msan] Fix name_to_handle_at test on overlayfs.

Udev supports name_to_handle_at. Use /dev/null instead of /bin/cat.
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llvm-svn: 354460

compiler-rt/test/msan/Linux/name_to_handle_at.cc

@@ -14,7 +14,7 @@ int main(void) {
   handle->handle_bytes = MAX_HANDLE_SZ;
 
   int mount_id;
-  int res = name_to_handle_at(AT_FDCWD, "/bin/cat", handle, &mount_id, 0);
+  int res = name_to_handle_at(AT_FDCWD, "/dev/null", handle, &mount_id, 0);
   assert(!res);
   __msan_check_mem_is_initialized(&mount_id, sizeof(mount_id));
   __msan_check_mem_is_initialized(&handle->handle_bytes,