Broken master: docs lint failure

https://gitlab.com/gitlab-org/gitlab-ce/-/jobs/281482898

Authenticating with credentials from job payload (GitLab Registry)
$ scripts/lint-doc.sh
=> Checking for cURL short options...
=> Checking for CHANGELOG.md duplicate entries...
=> Checking for executable permissions...
=> Checking for new README.md files...
✔ Linting passed
$ markdownlint --config .markdownlint.json doc/**/*.md
doc/api/project_snippets.md: 90: MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]
doc/api/project_snippets.md: 129: MD009/no-trailing-spaces Trailing spaces [Expected: 0 or 2; Actual: 1]

Probably introduced on https://gitlab.com/gitlab-org/gitlab-ce/commit/de385eee8507a35f1c01ca784ba9aab9bc38e11d