build: remove warnings for recommended style

Specifically:

 * space before function arguments

 * brace around single statement

Ideally we would *reverse* these tests so they warn under the exact
opposite conditions, but that would mean learning the internals of a
script written in a defective language with cryptic variable names and
too few comments.  Life's too short.  For now, just cutting down on some
of the spam (which might obscure more serious issues) should suffice.

BUG: 1120646
Change-Id: I5ec684d0d788a34f29af9b1761743c8860973993
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/8813
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: Harshavardhana <harsha@harshavardhana.net>