fix style

src/yuzu/main.h

@@ -428,6 +428,7 @@ private:
     void ConfigureFilesystemProvider(const std::string& filepath);
     /**
      * Open (or not) the right confirm dialog based on current setting and game exit lock
+     * @returns true if the player confirmed or the settings do no require it
      */
     bool ConfirmShutdownGame();