cli: Rectify grammar in the "Usage" of "rebalance" command

Problem: Currently Usage of rebalance command is : " Usage: volume rebalance
<VOLNAME> [fix-layout] {start|stop|status} [force] "

1) "force" option can be only used with "start" .

2) "fix-layout" option can be only used with "start"

But the current usage says "fix-layout" operation can be stopped and can get the
status of "fix-layout" operation and also "stop" ,"status" operation can be used
with "force" option which is not correct.

Change-Id: I48e6c64c124f5803c8f09c78df0e14dc2b6a348a
BUG: 1071411
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/7172
Reviewed-by: Anand Avati <avati@redhat.com>
Tested-by: Anand Avati <avati@redhat.com>

0 files changed, 0 insertions, 0 deletions