tests/test-dirstate-backup.t

mr-template: drop the "title and description"

I though I would affect the template in the menu itself, however it just a
normal piece of text that should not be here.

Set up

  $ hg init repo
  $ cd repo

Try to import an empty patch

  $ hg import --no-commit - <<EOF
  > EOF
  applying patch from stdin
  abort: stdin: no diffs found
  [10]

No dirstate backups are left behind

  $ ls .hg/dirstate* | sort
  .hg/dirstate