Perl::Critic::Policy::ValuesAndExpressions::RequireUpperCaseHeredocTerminator − Write " <<'THE_END'; " instead of " <<'theEnd'; ".
This Policy is part of the core Perl::Critic distribution.
For legibility, HEREDOC terminators should be all UPPER CASE letters (and numbers), without any whitespace. Conway also recommends using a standard prefix like " END_ " but this policy doesn’t enforce that.
print <<'the End'; #not ok Hello World the End print <<'THE_END'; #ok Hello World THE_END
This Policy is not configurable except for the standard options.
Jeffrey Ryan Thalhammer <jeff@imaginative−software.com>
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.