Initial value of $_: Perl 46 required--this is only version 5.004xx, stopped at - line 1.
Turn 46 to 'J'
Stock around the words in $_: required--this Perl Jonlyrequired--thisversionat
$_'required--this'; $,=' Perl '; $\='Jonlyrequired--thisversionat';
Swap chars in $_, end up with 'the'
Swap chars in $\ giving 'Journal' and  prepend ' Perl '
Return from $SIG{__DIE__} and continue in END where print prints $_.$\
