cli: fix Number of bricks output
cli: fix Number of bricks output

Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Vijay Bellur <vijay@dev.gluster.com>

BUG: 1815 (gluster volume info - Number of Bricks field)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1815

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster