checkpatch: improve seq_print->seq_puts suggestion

Improve the format specifier test by removing any %% before looking for
any remaining % format specifier.

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 059c032..7f1804e0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4854,7 +4854,8 @@
 # check for seq_printf uses that could be seq_puts
 		if ($sline =~ /\bseq_printf\s*\(.*"\s*\)\s*;\s*$/) {
 			my $fmt = get_quoted_string($line, $rawline);
-			if ($fmt ne "" && $fmt !~ /[^\\]\%/) {
+			$fmt =~ s/%%//g;
+			if ($fmt !~ /%/) {
 				if (WARN("PREFER_SEQ_PUTS",
 					 "Prefer seq_puts to seq_printf\n" . $herecurr) &&
 				    $fix) {