libiptc: replace ipt_chainlabel by xt_chainlabel

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/libiptc/libip6tc.c b/libiptc/libip6tc.c
index 0f8a889..93366e2 100644
--- a/libiptc/libip6tc.c
+++ b/libiptc/libip6tc.c
@@ -57,7 +57,7 @@
 #define ERROR_TARGET		IP6T_ERROR_TARGET
 #define NUMHOOKS		NF_IP6_NUMHOOKS
 
-#define IPT_CHAINLABEL		ip6t_chainlabel
+#define IPT_CHAINLABEL		xt_chainlabel
 
 #define TC_DUMP_ENTRIES		dump_entries6
 #define TC_IS_CHAIN		ip6tc_is_chain