Make sure the changelog mentions files whose flags changed These changes don't actually need a new filelog entry (see next patch), but if we don't mention the files in the changelog, it becomes much harder to find all changesets that touch a file (not even a "hg log --removed file" will work).

abort: Failed to parse .../t/.hg/hgrc
File contains no section headers.
file: .../t/.hg/hgrc, line: 1
'invalid\n'