extras: reverse test for '}' vs. following 'else' placement

The two-line form "}\nelse {" has been more common than the one-line
form "} else {" in our code for years, and IMO for good reason (see
the comment in the diff).

Change-Id: Ic22c76fe76f0d91300daff36e755a18a8db58852
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/8888
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>