add userspace part of SCTP match
diff --git a/iptables-save.c b/iptables-save.c
index 41173ea..cdedfbf 100644
--- a/iptables-save.c
+++ b/iptables-save.c
@@ -75,6 +75,7 @@
 	{ "icmp", IPPROTO_ICMP },
 	{ "esp", IPPROTO_ESP },
 	{ "ah", IPPROTO_AH },
+	{ "sctp", IPPROTO_SCTP },
 };
 
 static void print_proto(u_int16_t proto, int invert)