[PATCH v2] checkpatch: Improve CVS revision marker check

[Kari Argillander]

This check gives false alarms at least in fs/ntfs3/ as there $LogFile is
used quite lot because it is name of file which logs NTFS metadata. This
improves check so it does not false alarm so easily.

Signed-off-by: Kari Argillander <kari.argillander@xxxxxxxxx>
---
v2:
	- Just improve checking. Thank for Jow Perches for regex.
v1:
Link: lore.kernel.org/ntfs3/20211026231637.3750-1-kari.argillander@xxxxxxxxx
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 461d4221e4a4..a45c6274fcb4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4018,7 +4018,7 @@ sub process {
 		}
 
 # check for RCS/CVS revision markers
-		if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
+		if ($rawline =~ /^\+.*\$(?:Revision|Log|Id)(?::.*)?\$/) {
 			WARN("CVS_KEYWORD",
 			     "CVS style keyword markers, these will _not_ be updated\n". $herecurr);
 		}
-- 
2.30.2