has +configfile ( default => '/etc/myapp.yaml' );
+You can pass an array of filenames if you want, but as usual the array
+has to be wrapped in a sub ref.
+
+ has +configfile ( default => sub { [ '/etc/myapp.yaml', '/etc/myapp_local.yml' ] } );
+
+Config files are trivially merged at the top level, with the right-hand files taking precedence.
+
=head1 CLASS METHODS
=head2 new_with_config