FileCheck: Fix stray quote in CHECK-LABEL error message.

llvm-svn: 188564
diff --git a/llvm/utils/FileCheck/FileCheck.cpp b/llvm/utils/FileCheck/FileCheck.cpp
index 82e8057..37c7874 100644
--- a/llvm/utils/FileCheck/FileCheck.cpp
+++ b/llvm/utils/FileCheck/FileCheck.cpp
@@ -768,7 +768,7 @@
       SM.PrintMessage(SMLoc::getFromPointer(CheckPrefixStart),
                       SourceMgr::DK_Error,
                       "found '"+CheckPrefix+"-LABEL:' with variable definition"
-                      " or use'");
+                      " or use");
       return true;
     }