Merge pull request #2120 from whitequark/flatten-hygiene
authorwhitequark <whitequark@whitequark.org>
Mon, 8 Jun 2020 20:19:18 +0000 (20:19 +0000)
committerGitHub <noreply@github.com>
Mon, 8 Jun 2020 20:19:18 +0000 (20:19 +0000)
flatten: make hygienic


Trivial merge