xtables: fix typo in error message of xtables_register_match()

Signed-off-by: Li Yewang <lyw@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/xtables.c b/xtables.c
index f8014a6..eec1733 100644
--- a/xtables.c
+++ b/xtables.c
@@ -759,7 +759,7 @@
 	}
 
 	if (strlen(me->name) >= XT_EXTENSION_MAXNAMELEN) {
-		fprintf(stderr, "%s: target `%s' has invalid name\n",
+		fprintf(stderr, "%s: match `%s' has invalid name\n",
 			xt_params->program_name, me->name);
 		exit(1);
 	}