Add an indication that the "SHOW HELP" example output is not complete.
Then we don't have to feel obliged to update it every time we add
something to the actual help output.
pgbouncer=# show help;
NOTICE: Console usage
DETAIL:
- SHOW [HELP|CONFIG|DATABASES|FDS|POOLS|CLIENTS|SERVERS|SOCKETS|LISTS|VERSION]
+ SHOW [HELP|CONFIG|DATABASES|FDS|POOLS|CLIENTS|SERVERS|SOCKETS|LISTS|VERSION|...]
SET key = arg
RELOAD
PAUSE
SUSPEND
RESUME
SHUTDOWN
+ [...]
6. If you made changes to the pgbouncer.ini file, you can reload it with::