clean up pathspec matching

If pathspec already matched exactly, it cannot match any more.
Originally, we had to continue anyways, because we did not
differentiate between exact, recursive and globbing matches.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

dir.c

@@ -118,7 +118,7 @@ int match_pathspec(const char **pathspec, const char *name, int namelen, int pre
 
 	for (retval = 0; (match = *pathspec++) != NULL; seen++) {
 		int how;
-		if (retval && *seen == MATCHED_EXACTLY)
+		if (*seen == MATCHED_EXACTLY)
 			continue;
 		match += prefix;
 		how = match_one(match, name, namelen);