check if the export directory is present only on the brick being added
check if the export directory is present only on the brick being added

Signed-off-by: Raghavendra Bhat <raghavendrabhat@gluster.com>
Signed-off-by: Vijay Bellur <vijay@dev.gluster.com>

BUG: 1510 ()
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1510

Kaushikbv/Gluster,Kaushikbv/Gluster,Kaushikbv/Gluster