Vivek Ghaisas ab6e709ee6 Improve error messages for {option,result}_map_unit_fn
Instead of saying "unit function", use the phrase the description
uses: "function that returns the unit type".

Fixes #5180.
2020-03-08 21:28:06 +00:00
..
2020-02-05 20:54:58 +03:00
2020-02-12 09:34:28 +01:00