Merge branch 'js/parseopt-subcommand-autocorrection' into seen

Merge branch 'js/parseopt-subcommand-autocorrection' into seen

The parse-options library learned to auto-correct misspelled
subcommand names.

* js/parseopt-subcommand-autocorrection:
  SQUASH???
  doc: document autocorrect API
  parseopt: add tests for subcommand autocorrection
  parseopt: enable subcommand autocorrection for git-remote and git-notes
  parseopt: autocorrect mistyped subcommands
  autocorrect: provide config resolution API
  autocorrect: rename AUTOCORRECT_SHOW to AUTOCORRECT_HINT
  autocorrect: use mode and delay instead of magic numbers
  help: move tty check for autocorrection to autocorrect.c
  help: make autocorrect handling reusable
  parseopt: extract subcommand handling from parse_options_step()