Try to fix the test for cmake builds, where clang is called clang-3.3.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175791 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/qa_override.c b/test/Driver/qa_override.c
index 341736f..bcf1662 100644
--- a/test/Driver/qa_override.c
+++ b/test/Driver/qa_override.c
@@ -10,4 +10,4 @@
 // RM-WERROR: ### QA_OVERRIDE_GCC3_OPTIONS: x-Werror +-mfoo
 // RM-WERROR-NEXT: ### Deleting argument -Werror
 // RM-WERROR-NEXT: ### Adding argument -mfoo at end
-// RM-WERROR-NEXT: clang: warning: argument unused during compilation: '-mfoo'
+// RM-WERROR-NEXT: warning: argument unused during compilation: '-mfoo'