UP030 replaces regex repetitions

[tobixx]

Summary

Regex repetitions are partially removed by this rule, example:

-    _re_date = r'(?P<day>\d{{1,2}})(?P<month>{0})'.format('|'.join(_months))
+    _re_date = r'(?P<day>\d{{,2}})(?P<month>{})'.format('|'.join(_months))

• 1 is removed in the regex expression: \d{{1,2}}
• format has only one parameter, removing any other but {0} in this case is wrong anyway