Fix RT#83267

The following code from Module::Metadata 1.000011 exposed the bug

   BEGIN {
     if ($INC{'Log/Contextual.pm'}) {
       Log::Contextual->import('log_info');
     } else {
       *log_info = sub (&) { warn $_[0]->() };
     }
   }
release 0.005002 (♥)