One test fails on the builders because it relies on a tty being present.
Upstream has fixed this test to not rely on a tty anymore, but this has
not been released yet.

Apply the commit from upstream as a patch until a new version has been
released.

The previous patch to fix it does not work, so remove it.

  File "bin/redo", line 10, in <module>
    redo.cmd_redo.main()
  File "/home/buildozer/aports/testing/redo/src/redo-redo-0.41/bin/../redo/cmd_redo.py", line 122, in main
    builder.await_log_reader()
  File "/home/buildozer/aports/testing/redo/src/redo-redo-0.41/bin/../redo/builder.py", line 109, in await_log_reader
    out = open('/dev/tty', 'w')
IOError: [Errno 6] No such device or address: '/dev/tty'

On the builders, the checks failed because they tried to open /dev/tty,
which does not exists.

Add a patch that continues when /dev/tty is missing.

Re-enable redo

./do: redo failed self test.