view .hg-format-source @ 6082:221a2563b02f

ci: allow defining $hg_branch to update to using an environment variable

GitLab CI/CD variables page says that "Variables set in the GitLab UI are not
passed down to service containers", but I think it only applies to variables
set in project settings, because HG_BRANCH works correctly when set at the
point of creating a new pipeline manually.

{"pattern": "glob:hgext3rd/**/*.py", "tool": "byteify-strings"}