if I'm not mistaken, that would probably be this setting:
nb_update (default: "YourNick")
List of users to send a note to whenever a new version of netbots.tcl becomes available, or when there's an important message about the script (e.g. bug alerts, etc.). The bot will visit a special page on
www.egghelp.org once every couple of days to check for these updates. It is recommended you only enable this feature on one bot, otherwise you could get flooded with notes when there's an update. This feature will only work on a bot using Tcl 8.0 or later (type '.netinfo -more' to see what tcl versions your bots are using) with the http package available.
Valid settings: one user like "Tom", a list of users like "Tom Dick Harry", or "" to disable the feature.
if you have large botnet, might be wise to add lines this way:
set nb_update ""
nb_set Bot1 nb_update "mopar"