Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator(3pm) on Linux
The text d4c51e73d95c, as Debian 10 (Buster) shipped it.
Write " print <<'THE_END' " or " print <<"THE_END" ".
Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator(3pm) on Linux now