cli: fix a stack buffer overflow error
cli: fix a stack buffer overflow error

Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 1279 (Buffer overflow build error)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1279

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster