painintheapt(8) on Linux
The text a39a80f35706, as Debian 9 (Stretch) shipped it.
Pester people about available package updates by email or jabber. Pain in the APT pesters people about available package upgrades, just like apticron or cron-apt. However, it does so by SMTP and XMPP (direct or MUC/conference room), but also by calling mailx.
Flags it lists
-
--debug -
--force -
--help -
-d -
-f -
-h