fix typos in help message for meta match

Make sure examples actually work.

tc/em_meta.c

@@ -34,9 +34,8 @@ static void meta_print_usage(FILE *fd)
 	    "       META_ID := id [ shift SHIFT ] [ mask MASK ]\n" \
 	    "\n" \
 	    "Example: meta(nfmark gt 24)\n" \
-	    "         meta(indev shift 1 eq \"ppp\"\n" \
+	    "         meta(indev shift 1 eq \"ppp\")\n" \
 	    "         meta(tcindex mask 0xf0 eq 0xf0)\n" \
-	    "         meta(dev eq indev)\n" \
 	    "\n" \
 	    "For a list of meta identifiers, use meta(list).\n");
 }