scripts/documentation-file-ref-check: don't parse Next/ dir

If one tries to run this script under linux-next, it would
hit lots of false-positives, due to the tree merges that
are stored under the Next/ directory.

So, add a logic to ignore it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

scripts/documentation-file-ref-check

@@ -38,6 +38,9 @@ while (<IN>) {
 	my $f = $1;
 	my $ln = $2;
 
+	# On linux-next, discard the Next/ directory
+	next if ($f =~ m,^Next/,);
+
 	# Makefiles and scripts contain nasty expressions to parse docs
 	next if ($f =~ m/Makefile/ || $f =~ m/\.sh$/);