Put regex flags first in expression

Author: vidartf

setupbase.py

@@ -659,7 +659,7 @@ def _translate_glob(pat):
         translated_parts.append(_translate_glob_part(part))
     os_sep_class = '[%s]' % re.escape(SEPARATORS)
     res = _join_translated(translated_parts, os_sep_class)
-    return '{res}\\Z(?ms)'.format(res=res)
+    return '(?ms){res}\\Z'.format(res=res)
 
 
 def _join_translated(translated_parts, os_sep_class):