type '#select' form elements do not show in red when there is an error

Some might ask if a select field should ever show an error because something is always selected. The answer is yes for two reasons that I can think of:

1) If a selection conflicts with another piece of data on the form
2) If the select element has a default value of something like "-Please Choose-" which is not a valid choice

Patch attached. I found it weird that the select element doesn't have any class attribute but this patch does not address that issue.