Localize changes to %ENV

[bschmalhofer]

In a persistent Perl environment, e.g. mod_perl or Gazelle, it is usually a good idea to localize changes to %ENV. See https://perl.apache.org/docs/general/perl_reference/perl_reference.html#The_Scope_of_the_Special_Perl_Variables . Luckily there already is a Perl::Critic check for this, but apparently this check often was deactivated to lightheartedly. So, look at the places where ## no critic qw(Variables::RequireLocalizedPunctuationVars) is in effect and investigate whether the changes to %ENV can be localised.

[bschmalhofer]

The test suite looks fine and CodePolicy has no complaints about Variables::RequireLocalizedPunctuationVars. The cgi-bin scripts will be tested later. Closing this issue.