purge: also deal with directory with --confirm
Getting the exact number is simple (you have to project the result of previous
deletion to detect super-directory with only about-to-be-deleted content). So we
use a vaguer message.
Differential Revision: https://phab.mercurial-scm.org/D9819
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true