Remove extra space after comma

Author: florentx

pep8.py

@@ -82,7 +82,7 @@
 KEYWORDS = frozenset(keyword.kwlist + ['print']) - SINGLETONS
 UNARY_OPERATORS = frozenset(['>>', '**', '*', '+', '-'])
 ARITHMETIC_OP = frozenset(['**', '*', '/', '//', '+', '-'])
-WS_OPTIONAL_OPERATORS = ARITHMETIC_OP.union(['^',  '&',  '|', '<<', '>>', '%'])
+WS_OPTIONAL_OPERATORS = ARITHMETIC_OP.union(['^', '&', '|', '<<', '>>', '%'])
 WS_NEEDED_OPERATORS = frozenset([
     '**=', '*=', '/=', '//=', '+=', '-=', '!=', '<>', '<', '>',
     '%=', '^=', '&=', '|=', '==', '<=', '>=', '<<=', '>>=', '='])