Docs: update "repmgr cluster show"

doc/repmgr-cluster-show.sgml

@@ -37,6 +37,8 @@
     If the node has an unexpected role not reflected in the &repmgr; metadata, e.g. a node was manually
     promoted to primary, this will be highlighted with an exclamation mark, e.g.:
     <programlisting>
+    $ repmgr -f /etc/repmgr.conf cluster show
+
      ID | Name  | Role    | Status               | Upstream | Location | Connection string
     ----+-------+---------+----------------------+----------+----------+-----------------------------------------
      1  | node1 | primary | ? unreachable        |          | default  | host=db_node1 dbname=repmgr user=repmgr

repmgr-client.c

@@ -925,7 +925,7 @@ main(int argc, char **argv)
 				runtime_options.terse,
 				&config_file_options,
 				argv[0]);
-	exit(SUCCESS);
+
 	check_cli_parameters(action);
 
 	/*