Change log message when executor is shut down

common/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolRegistry.java

@@ -377,7 +377,7 @@ public class ProtocolRegistry {
     }
 
     private static void shutdownLoaderExecutor() {
-        Via.getPlatform().getLogger().info("Shutting down mapping loader executor!");
+        Via.getPlatform().getLogger().info("Finished mapping loading, shutting down loader executor!");
         mappingsLoaded = true;
         mappingLoaderExecutor.shutdown();
         mappingLoaderExecutor = null;