distribute: handle a case of 'local->key' being free'd twice.
distribute: handle a case of 'local->key' being free'd twice.

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

BUG: 2097 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2097

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster