Minor - remove extra space

Author: ybrustin

Lib/unittest/case.py

@@ -778,7 +778,7 @@ def _formatMessage(self, msg, standardMsg):
             # it changes the way unicode input is handled
             return '%s : %s' % (standardMsg, msg)
         except UnicodeDecodeError:
-            return  '%s : %s' % (safe_repr(standardMsg), safe_repr(msg))
+            return '%s : %s' % (safe_repr(standardMsg), safe_repr(msg))
 
     def assertRaises(self, expected_exception, *args, **kwargs):
         """Fail unless an exception of class expected_exception is raised