Merge branch 'ap/status-ignored-in-ignored-directory' into maint

Output from "git status --ignored" did not work well when used with
"--untracked".

* ap/status-ignored-in-ignored-directory:
  status: always report ignored tracked directories
  git-status: Test --ignored behavior
  dir.c: Make git-status --ignored more consistent

diff --cc dir.c
Simple merge

diff --cc wt-status.c
Simple merge