* bgp_vty.c: Make "exit-address-family" work in IPv4 unicast address
	  family node.

	[backport candidate]
diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c
index f7a41f5..06c4abd 100644
--- a/bgpd/bgp_vty.c
+++ b/bgpd/bgp_vty.c
@@ -3954,7 +3954,8 @@
        "exit-address-family",
        "Exit from Address Family configuration mode\n")
 {
-  if (vty->node == BGP_IPV4M_NODE
+  if (vty->node == BGP_IPV4_NODE
+      || vty->node == BGP_IPV4M_NODE
       || vty->node == BGP_VPNV4_NODE
       || vty->node == BGP_IPV6_NODE)
     vty->node = BGP_NODE;