Fix spelling error

"temporary" was misspelled
s/tempaory/temporary/

BUG: 818884

Change-Id: If033acd4d8d778bde7588d8b4b512d6508e36f22
Signed-off-by: Joe Julian <me@joejulian.name>
Reviewed-on: http://review.gluster.org/4661
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Anand Avati <avati@redhat.com>