ctf-flagid: use less confusing variable name
ctf-flagid: use less confusing variable name

service_id is not the id, but the name of the service.

fausecteam/ctf-gameserver,fausecteam/ctf-gameserver,fausecteam/ctf-gameserver,fausecteam/ctf-gameserver,fausecteam/ctf-gameserver