Enqueued styles have an invalid media attribute

The wp_enqueue_style has an empty string media parameter resulting in an invalid media attribute in the generated style tag html. For example: line 219 in google-language-translator.php is

wp_enqueue_style( ‘google-language-translator’, plugins_url(‘css/style.css’, __FILE__), ”, PLUGIN_VER, ”);

I think the last parameter is best omitted so that the default ‘all’ is used, i.e.

wp_enqueue_style( ‘google-language-translator’, plugins_url(‘css/style.css’, __FILE__), ”, PLUGIN_VER );

There are four occurences of this problem on lines 209, 212, 219 and 222.

Tony