missing dport in f_u32 output

Small typo from last change to decode filters. Should print dport
not port.
diff --git a/tc/f_u32.c b/tc/f_u32.c
index 9bc4bb5..7e4d56c 100644
--- a/tc/f_u32.c
+++ b/tc/f_u32.c
@@ -838,7 +838,7 @@
 				ntohl(key->val) >> 16);
 			return;
 		case 0xffffffff:
-			fprintf(f, "\n  sport %u, port %u", 
+			fprintf(f, "\n  sport %u, dport %u", 
 				ntohl(key->val) & 0xffff,
 				ntohl(key->val) >> 16);