'Log::Any' allows CPAN modules to safely and efficiently log messages,
while letting the application choose (or decline to choose) a logging
mechanism such as 'Log::Dispatch' or 'Log::Log4perl'.
'Log::Any' has a very tiny footprint and no dependencies beyond Perl 5.6,
which makes it appropriate for even small CPAN modules to use. It defaults
to 'null' logging activity, so a module can safely log without worrying
about whether the application has chosen (or will ever choose) a logging
The application, in turn, may choose one or more logging mechanisms via