[Bug #835415] AIX can return modes that are >65536, which causes an OverflowError.  Fix from Albert Chin
[Bug #835415] AIX can return modes that are >65536, which causes an OverflowError.  Fix from Albert Chin

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator