This was just recently removed from sudo. Truly the end of an era

Remove "This incident will be reported." from user warnings. 

This used to indicate that email had been sent to the administrator
telling them that someone tried to run sudo.  Whether or not sudo
sends email is now configurable, so the warning may not be accurate.
It is also confusing to the user since they will not know who the
incident is being reported to.  See also https://xkcd.com/838

https://github.com/sudo-project/sudo/commit/6aa320c96a37613663e8de4c275bd6c490466b01

EDIT: apparently it was added back for some cases

https://github.com/sudo-project/sudo/commit/9757d29a24ac1872872cf09757b0439c54089707