Merge branch 'ss/exc-flag-is-a-collection-of-bits' into maint

Code clean-up. * ss/exc-flag-is-a-collection-of-bits: dir: store EXC_FLAG_* values in unsigned integers

Junio C Hamano committed Apr 14, 2016 at 18:37 UTC 9fabc7083275f455ef21123cbdcbdd31b21a8251

No changes.