cli: Show 'commit' option in replace-brick.
cli: Show 'commit' option in replace-brick.

Signed-off-by: Gaurav <gaurav@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 2273 (replace-brick help does not show commit option)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2273

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster