MultiTestRunner: Fix invalid warning when pointing 'lit' directly at a test.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77690 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/test/MultiTestRunner.py b/utils/test/MultiTestRunner.py
index 9980e65..cccc6e2 100755
--- a/utils/test/MultiTestRunner.py
+++ b/utils/test/MultiTestRunner.py
@@ -36,6 +36,7 @@
         
         if not os.path.isdir(path):
             yield path
+            continue
 
         foundOne = False
         for dirpath,dirnames,filenames in os.walk(path):