xtables_ip6addr_to_numeric: fix typo in comment

An IPv6 address consists of eight hexadecimal 16-bit values seperated
by colons, or alternatively, six (not five) of these followed by a colon
and an IPv4 address in standard dotted decimal quad notation
(for IPv4 mapped addresses and the like).

Signed-off-by: Maciej Zenczykowski <maze@google.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/xtables.c b/xtables.c
index 352963f..7d36742 100644
--- a/xtables.c
+++ b/xtables.c
@@ -1336,7 +1336,7 @@
 
 const char *xtables_ip6addr_to_numeric(const struct in6_addr *addrp)
 {
-	/* 0000:0000:0000:0000:0000:000.000.000.000
+	/* 0000:0000:0000:0000:0000:0000:000.000.000.000
 	 * 0000:0000:0000:0000:0000:0000:0000:0000 */
 	static char buf[50+1];
 	return inet_ntop(AF_INET6, addrp, buf, sizeof(buf));