One more revert

Author: buyaa-n

src/tasks/WasmAppBuilder/EmccCompile.cs

@@ -75,7 +75,7 @@ private bool ExecuteActual()
 
             if (!Enum.TryParse(OutputMessageImportance, ignoreCase: true, out MessageImportance messageImportance))
             {
-                Log.LogError($"Invalid value for OutputMessageImportance={OutputMessageImportance}. Valid values: {string.Join(", ", Enum.GetNames<MessageImportance>())}");
+                Log.LogError($"Invalid value for OutputMessageImportance={OutputMessageImportance}. Valid values: {string.Join(", ", Enum.GetNames(typeof(MessageImportance)))}");
                 return false;
             }