$ perl -T -MDate::Manip::DM6 -E 'say $Date::Manip::VERSION'
Insecure $ENV{ENV} while running with -T switch at /usr/local/lib/perl5/site_perl/Date/Manip/TZ.pm line 844.

##</code><code>##

open(IN,$cmd |") || return ();

##</code><code>##

$ DATE_MANIP=DM5 perl -T -MDate::Manip -E 'say $Date::Manip::VERSION'
6.81