IIRC you need to find the position which says say $msg and replace it with tell $playerid $msg... and hack that into Perl code ^^
Edit:
I checked the source now, this seems to be it: https://github.com/voron00/Nanny/blo...nanny.pl#L2749
Try to replace this:
PHP Code:
&rcon_command("say $name^7: Вы можете использовать ^1!stats ^7чтобы узнать свою подробную статистику");
With:
PHP Code:
&rcon_command("tell $slot $name^7: Вы можете использовать ^1!stats ^7чтобы узнать свою подробную статистику");
But since the !say $name scheme is like over 20 times there, you gotta replace it in every line.