This is the revision history for -f in <freenode.net:#perlbot>

factoid_idsubjectcopulapredicateauthornamespace
6253 -f is <perldoc -f <arg>>
https://perldoc.perl.org/functions/length
simcop2387-lap <*:##NULL>
6244 -f is <perldoc -f <arg>>
Not Available
simcop2387-lap <*:##NULL>