ircd.conf file.
[option] can be one of the following:
- BANS - Re-reads kline.conf, dline.conf, resv.conf and xline.conf
+ BANS - Re-reads kline/dline/resv/xline database
DNS - Re-read the /etc/resolv.conf file
HELP - Re-reads help files
MOTD - Re-reads MOTD file