required review for $_WD_ERRORR_*** comments

[mlipok]

we should review these comments and change them as they are currently causing confusion

It would be simple to change that specific comment to "Unsupported option". Which others do you find confusing?

Originally posted by @Danp2 in https://github.com/Danp2/au3WebDriver/issues/438#issuecomment-1477766182