#11180)

flutter/flutter@90673a4...ff37bef

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Blank lines between list items in a CHANGELOG.md file cause pub.dev to render them as separate lists, which is not the intended style for the project.

This commit updates the `version-check` command to detect this pattern using a multi-line regex. If a match is found, the check fails and prints the offending lines to the console to help the author fix it.

Fixes flutter/flutter#177511

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