Tiny correction on the command-line source location parser.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73758 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/clang-cc/clang-cc.cpp b/tools/clang-cc/clang-cc.cpp
index 1f1ae85..39d839e 100644
--- a/tools/clang-cc/clang-cc.cpp
+++ b/tools/clang-cc/clang-cc.cpp
@@ -140,7 +140,7 @@
       }
 
       std::string::size_type FirstColon = ArgValue.rfind(':', SecondColon-1);
-      if (SecondColon == std::string::npos) {
+      if (FirstColon == std::string::npos) {
         std::fprintf(stderr, "%s\n", ExpectedFormat);
         return true;
       }