[VTY] Introduce "end" command that works from any level in config
Using "end" you can always return to the "enable" level, and from
there the "show" commands are available. So no more need for
exit/exit/exit/exit/disable.
diff --git a/openbsc/src/gprs/gprs_ns_vty.c b/openbsc/src/gprs/gprs_ns_vty.c
index b18e651..410c35f 100644
--- a/openbsc/src/gprs/gprs_ns_vty.c
+++ b/openbsc/src/gprs/gprs_ns_vty.c
@@ -283,6 +283,7 @@
install_node(&ns_node, config_write_ns);
install_default(NS_NODE);
install_element(NS_NODE, &ournode_exit_cmd);
+ install_element(NS_NODE, &ournode_end_cmd);
install_element(NS_NODE, &cfg_nse_nsvci_cmd);
install_element(NS_NODE, &cfg_nse_remoteip_cmd);
install_element(NS_NODE, &cfg_nse_remoteport_cmd);