Normalize options to use '-FOO' instead of '--FOO'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90071 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Coverage/parse-callbacks.c b/test/Coverage/parse-callbacks.c
index 537d630..e29b38b 100644
--- a/test/Coverage/parse-callbacks.c
+++ b/test/Coverage/parse-callbacks.c
@@ -1,4 +1,4 @@
-// RUN: clang-cc --parse-noop %s
-// RUN: clang-cc --parse-print-callbacks %s
+// RUN: clang-cc -parse-noop %s
+// RUN: clang-cc -parse-print-callbacks %s
 
 #include "c-language-features.inc"