Wording change for unknown explicit import

[hdgarrood]

For example:

module Main where

import Prelude (thisDoesNotExist)

currently gives "Unknown value Prelude.thisDoesNotExist". I think "Prelude does not export thisDoesNotExist" would be better, in order to help differentiate it from, eg, errors arising from values not being in scope in expressions.

[puffnfresh]

👍

[paf31]

👍