p4raw-id: //depot/perl@18649
SYS$TIMEZONE_DIFFERENTIAL but are optional and discussed further in
L<perlvms> and in F<README.vms> in the Perl source distribution.
+=item PERL_UTF8_LOCALE
+
+Equivalent to the B<-C> command-line switch.
+
=item SYS$LOGIN (specific to the VMS port)
Used if chdir has no argument and HOME and LOGDIR are not set.