gyb: special case list for conversion

In order to deal with encoding conversions for Python 2 and Python 3,
the string had to be passed through CStringIO for Python 2.  On Python
3, the strings are unicode.

Author: compnerd

utils/gyb.py

@@ -737,7 +737,7 @@ def execute(self, context):
             result_string = None
             if isinstance(result, Number) and not isinstance(result, Integral):
                 result_string = repr(result)
-            elif isinstance(result, Integral):
+            elif isinstance(result, Integral) or isinstance(result, list):
                 result_string = str(result)
             else:
                 result_string = StringIO(result).read()