dir.c::match_pathname(): adjust patternlen when shifting pattern

If we receive a pattern that starts with "/", we shift it
forward to avoid looking at the "/" part. Since the prefix
and patternlen parameters are counts of what is in the
pattern, we must decrement them as we increment the pointer.

We remembered to handle prefix, but not patternlen. This
didn't cause any bugs, though, because the patternlen
parameter is not actually used. Since it will be used in
future patches, let's correct this oversight.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/dir.c b/dir.c
index 0db79f9cf6a6b3c1f21b4e0b286bcd9f0ca7df0d..1757a3f4e0e141a3f9c763a194a2ed53010f0159 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -597,6 +597,7 @@ int match_pathname(const char *pathname, int pathlen,
         */
        if (*pattern == '/') {
                pattern++;
+               patternlen--;
                prefix--;
        }