scripts/checkpatch.pl: reset rpt_cleaners warnings

If you run checkpatch against multiple patches, and one of them has a
whitespace issue which can be helped via a script (rpt_cleaners), you will
see the same NOTE over and over for all subsequent patches.  It makes it
seem like those patches also have whitespace problems when in reality,
there's only one or two bad apples.

So reset rpt_cleaners back to 0 after we've issued the note so that it
only shows up near the patch with the actual problems.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

scripts/checkpatch.pl

@@ -2944,6 +2944,7 @@ sub process {
 		if ($rpt_cleaners) {
 			print "NOTE: whitespace errors detected, you may wish to use scripts/cleanpatch or\n";
 			print "      scripts/cleanfile\n\n";
+			$rpt_cleaners = 0;
 		}
 	}