Fix Com_Filter

Com_Filter uses a limited sort of proto-regex syntax including a
character class like construct, but prior to this change these did not
work if preceded by a * glob.

code/qcommon/common.c

@@ -626,7 +626,7 @@ int Com_Filter(char *filter, char *name, int casesensitive)
 		if (*filter == '*') {
 			filter++;
 			for (i = 0; *filter; i++) {
-				if (*filter == '*' || *filter == '?') break;
+				if (*filter == '*' || *filter == '?' || *filter == '[') break;
 				buf[i] = *filter;
 				filter++;
 			}