The `<<EOF` heredoc inside the `run: |` step body broke YAML parsing —
heredoc bodies have to start at column 0, but YAML block scalars
require consistent indentation. Both runs of the new workflow on the
v0.8.31 push failed at the workflow-file validation stage with
`expected a comment or a line break, but found '$'` at line 128.
Switching to `printf '%s\n' "line1" "line2" ...` keeps every line of
the message at the same indent as the surrounding shell code, so the
YAML `|` scalar stays consistent. Behaviour is identical from the
contributor's perspective.
Confirmed locally with `python3 -c 'import yaml; yaml.safe_load(...)'`
before pushing.
Hunter Bown
56a893563b