# This could be traditional "merge <msg> HEAD <commit>..." and the
# way we can tell it is to see if the second token is HEAD, but some
-# people might have misused the interface and used a committish that
+# people might have misused the interface and used a commit-ish that
# is the same as HEAD there instead. Traditional format never would
# have "-m" so it is an additional safety measure to check for it.