retrigger appveyor

Author: elazarg

mypy/test/data.py

@@ -26,7 +26,7 @@ def parse_test_cases(
 
     Return an array of test cases.
 
-    NB this function and DataDrivenTestCase were shared between the
+    NB: this function and DataDrivenTestCase were shared between the
     myunit and pytest codepaths -- if something looks redundant,
     that's likely the reason.
     """