cherry-pick(#34410): fix(list reporter): do not break after output without trailing eol

[dgozman]

No description provided.

[github-actions]

Test results for "tests 1"

1 fatal errors, not part of any test

10 flaky

⚠️ [chromium-library] › tests/library/role-utils.spec.ts:442:5 › svg role=presentation @chromium-ubuntu-22.04-node20
⚠️ [firefox-page] › tests/page/page-evaluate.spec.ts:403:3 › should throw for too deep reference chain @firefox-ubuntu-22.04-node18
⚠️ [playwright-test] › tests/ui-mode-test-setup.spec.ts:98:5 › should show errors in config @macos-latest-node18-1
⚠️ [webkit-library] › tests/library/browsercontext-reuse.spec.ts:86:1 › should reset serviceworker that hangs in importScripts @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/browsertype-connect.spec.ts:575:5 › launchServer › should properly disconnect when connection closes from the client side @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/selector-generator.spec.ts:604:5 › selector generator › should prefer role with hasText to css with hasText @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/signals.spec.ts:86:7 › signals › should close the browser on SIGTERM @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/trace-viewer.spec.ts:149:1 › should open simple trace viewer @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/tracing.spec.ts:614:5 › should hide internal stack frames in expect @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › tests/page/page-set-input-files.spec.ts:147:3 › should upload large file @webkit-ubuntu-22.04-node18

37594 passed, 648 skipped
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Merge workflow run.