merge some simple call diagnostics.

llvm-svn: 59831
diff --git a/clang/test/Sema/builtins.c b/clang/test/Sema/builtins.c
index d02adf3..bbbad42 100644
--- a/clang/test/Sema/builtins.c
+++ b/clang/test/Sema/builtins.c
@@ -28,7 +28,7 @@
   CFSTR("\242"); // expected-warning {{ CFString literal contains non-ASCII character }}
   CFSTR("\0"); // expected-warning {{ CFString literal contains NUL character }}
   CFSTR(242); // expected-error {{ CFString literal is not a string constant }} expected-warning {{incompatible integer to pointer conversion}}
-  CFSTR("foo", "bar"); // expected-error {{ error: too many arguments to function }}
+  CFSTR("foo", "bar"); // expected-error {{too many arguments to function call}}
 }