updated for version 7.4.544

Problem:    Warnings for unused arguments when compiling with a combination of
            features.
Solution:   Add "UNUSED".

src/if_cscope.c

@@ -1131,8 +1131,8 @@ cs_find_common(opt, pat, forceit, verbose, use_ll, cmdline)
     char *pat;
     int forceit;
     int verbose;
-    int	use_ll;
-    char_u *cmdline;
+    int	use_ll UNUSED;
+    char_u *cmdline UNUSED;
 {
     int i;
     char *cmd;