"glustercli volume get" help needs to be more clear

[PrasadDesala]

Observed behavior

[root@gluster-kube1-0 /]# glustercli volume get -h
Get Gluster Volume Options

Usage:
glustercli volume get [flags]

In the Usage it is not showing what exact flags should be used. something similar to below would help for a better understanding to the user.

Usage:
volume get <VOLNAME|all> <key|all>

Expected/desired behavior

"glustercli volume get" help needs to be more clear