- avoid writing "set ..." or "enable/disable ..." or "specify ..."
*All* options for curl_easy_setopt() are about setting or enabling
things and most of the existing options didn't use that way of
description.
- start with lowercase letter, unless abbreviation. For consistency.
- Some additional touch-ups
Closes#7688
Instead of discussing if there's value or meaning (implied or not) in
the colors, let's use words without the same possibly negative
associations.
Closes#5546
