Remove usage of grep-not script

llvm-svn: 6966
diff --git a/llvm/test/Regression/Assembler/ConstantExprFoldCast.llx b/llvm/test/Regression/Assembler/ConstantExprFoldCast.llx
index 34e5654..3dc6aac 100644
--- a/llvm/test/Regression/Assembler/ConstantExprFoldCast.llx
+++ b/llvm/test/Regression/Assembler/ConstantExprFoldCast.llx
@@ -1,6 +1,6 @@
 ; This test checks to make sure that constant exprs fold in some simple situations
 
-; RUN: as < %s | dis | grep-not cast
+; RUN: as < %s | dis | not grep cast
 
 %A = global int* cast (sbyte* null to int*)  ; Cast null -> fold
 %B = global int** cast (int** %A to int**)   ; Cast to same type -> fold