Fix cli volume defrag command hang
Fix cli volume defrag command hang

gluster volume defrag <volname> hang is being fixed. Also, if a invalid
 volname was specified, it used to create mount point and call gluster
 client mount on it. This is also being fixed

Signed-off-by: shishir gowda <shishirng@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 1247 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1247

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster