tests/test-hgrc.out

Fix thinko in test-inherit-mode

If we don't change any rwx bit in the last test, hg will skip the
calls to chmod since it'll assume they're not needed.

This might fix things on BSD systems.

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