Update repo_health.yml

.github/workflows/repo_health.yml

@@ -641,12 +641,9 @@ jobs:
             content_warnings+=("README.md missing expected brand keyword")
           fi
 
-          export MISSING_REQUIRED="$(printf '%s
-' "${missing_required[@]:-}")"
-          export MISSING_OPTIONAL="$(printf '%s
-' "${missing_optional[@]:-}")"
-          export CONTENT_WARNINGS="$(printf '%s
-' "${content_warnings[@]:-}")"
+          export MISSING_REQUIRED="$(printf '%s\\n' "${missing_required[@]:-}")"
+          export MISSING_OPTIONAL="$(printf '%s\\n' "${missing_optional[@]:-}")"
+          export CONTENT_WARNINGS="$(printf '%s\\n' "${content_warnings[@]:-}")"
 
           report_json="$(python3 - <<'PY'
           import json