decrease sleep in on_wait

lib/Zonemaster/Backend/Config.pm

@@ -744,7 +744,7 @@ sub new_PM {
                 }
             }
         },
-        1
+        0.125
     );
 
     $pm->run_on_start(

lib/Zonemaster/Backend/TestAgent.pm

@@ -89,7 +89,7 @@ sub run {
     # used for progress indicator
     my ( $previous_module, $previous_method ) = ( '', '' );
     #my $callback_duration = 0;
-    my @entries;
+    #my @entries;
 
     # Callback defined here so it closes over the setup above.
     # Zonemaster::Engine->logger->callback(