Add new property "short_name" for buffers

src/plugins/irc/irc-command.c

@@ -3136,6 +3136,8 @@ irc_command_server (void *data, struct t_gui_buffer *buffer, int argc,
                 }
             }
         }
+        weechat_buffer_set (irc_current_server->buffer, "short_name",
+                            irc_current_server->name);
         weechat_bar_item_update ("buffer_name");
         weechat_bar_item_update ("input_prompt");
         return WEECHAT_RC_OK;