lanx@lanx-1005HA:~$ export PERL5OPT="-Mstrict"
lanx@lanx-1005HA:~$ perldoc perldoc
Global symbol "$running_under_some_shell" requires explicit package name at /usr/bin/pod2man line 6.
BEGIN not safe after errors--compilation aborted at /usr/bin/pod2man line 18.
Got a 0-length file from /usr/share/perl/5.14/pod/perldoc.pod via Pod::Perldoc::ToMan!?