commit: Update manpage to reflect --editor
commit: Update manpage to reflect --editor

Closes: #305
Approved by: cgwalters

gatispaeglis/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,gatispaeglis/ostree,gatispaeglis/ostree,GNOME/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,gatispaeglis/ostree