checkpatch: fix left brace warning
checkpatch: fix left brace warning

Using checkpatch.pl with Perl 5.22.0 generates the following warning:

    Unescaped left brace in regex is deprecated, passed through in regex;

This patch fixes the warnings by escaping occurrences of the left brace
inside the regular expression.

Signed-off-by: Eddie Kovsky <c2afab429ac05dac75fc9c29cab4b722c1594f2e@edkovsky.org>
Cc: Joe Perches <16a9a54ddf4259952e3c118c763138e83693d7fd@perches.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs