Use not instead of ! in tests.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67601 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Coverage/codegen-gnu.m b/test/Coverage/codegen-gnu.m
index 1443cf1..adaf53c 100644
--- a/test/Coverage/codegen-gnu.m
+++ b/test/Coverage/codegen-gnu.m
@@ -2,6 +2,6 @@
 // RUN: clang -triple i386-unknown-unknown -DIRGENABLE_GNU -DIRGENABLE -g -fgnu-runtime -emit-llvm -o %t %s &&
 
 // FIXME: Remove once GNU can IRgen everything.
-// RUN: ! clang -triple i386-unknown-unknown -fgnu-runtime -emit-llvm -o %t %s
+// RUN: not clang -triple i386-unknown-unknown -fgnu-runtime -emit-llvm -o %t %s
 
 #include "objc-language-features.inc"