Letters not automatically included in expanded options display

[sbj42]

The animated gif referenced by the README.md shows that I should expect to see the letters in the expanded options display, like this:

? What action should be taken on file.js?  (yadXh)
  y) Overwrite
  a) Overwrite this one and all next
  d) Show diff
 ────────
  x) Abort
  h) Help
  Answer:

However, when I run the sample code, I get this instead:

? What action should be taken on file.js?  (yadXh)
  overwrite
  overwrite_all
  diff
 ────────
  abort
  Help
  Answer:

Ignoring issue #1 (the name and value are reversed), it doesn't seem to be adding the letters to the display (e.g. "y) ")