Un-break standalone invocations of CmpRuns.py.

Fallout from CmpRuns.py API changes in r160314.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160800 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/analyzer/CmpRuns.py b/utils/analyzer/CmpRuns.py
index 6013345..ff48aa7 100755
--- a/utils/analyzer/CmpRuns.py
+++ b/utils/analyzer/CmpRuns.py
@@ -273,7 +273,7 @@
 
     dirA,dirB = args
 
-    cmpScanBuildResults(dirA, dirB, opts)    
+    dumpScanBuildResultsDiff(dirA, dirB, opts)    
 
 if __name__ == '__main__':
     main()