Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator - Write " print <<'THE_END' "

       This Policy is part of the core Perl::Critic distribution.

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

       This Policy is not configurable except for the standard options.

       Copyright (c) 2005-2011 Imaginative Software Systems.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl
       itself.  The full text of this license can be found in the LICENSE file included with this module.

perl v5.40.0                                       2024-10-28             Perl::Critic::P...redocTerminator(3pm)

       Putting single or double-quotes around your HEREDOC terminator make it obvious to the reader whether the
       content is going to be interpolated or not.

           print <<END_MESSAGE;    #not ok
           Hello World
           END_MESSAGE

           print <<'END_MESSAGE';  #ok
           Hello World
           END_MESSAGE

           print <<"END_MESSAGE";  #ok
           $greeting
           END_MESSAGE

       Perl::Critic::Policy::ValuesAndExpressions::RequireQuotedHeredocTerminator - Write " print <<'THE_END' "
       or " print <<"THE_END" ".

       Perl::Critic::Policy::ValuesAndExpressions::RequireUpperCaseHeredocTerminator