Fix ref to commit_on_success.
Fix ref to commit_on_success.

jarrahwu/peewee,Dipsomaniac/peewee,coleifer/peewee,fuzeman/peewee,coreos/peewee,Dipsomaniac/peewee,d1hotpep/peewee,py4a/peewee,ghukill/peewee,coreos/peewee,bopo/peewee,mackjoner/peewee,bopo/peewee,new-xiaji/peewee,jnovinger/peewee,coreos/peewee,stas/peewee,jnovinger/peewee,lez/peewee,zhang625272514/peewee,ronyb29/peewee,wenxer/peewee,Sunzhifeng/peewee,new-xiaji/peewee,new-xiaji/peewee,d1hotpep/peewee,softside/peewee,coleifer/peewee,Sunzhifeng/peewee,teserak/peewee,zhang625272514/peewee,Sunzhifeng/peewee,zhang625272514/peewee,fuzeman/peewee,bopo/peewee,wenxer/peewee,Dipsomaniac/peewee,coleifer/peewee,jarrahwu/peewee,jarrahwu/peewee