[PATCH] Recreate test data for Git mirrors

Hi,

attached is a patch that fixes a test for Git mirrors. The error
results from the fact that Git does not track empty directories,
which one test relies upon.

As we're already doing some path processing for the missing
directories and as we're also creating directories in the other
import tests, I think this is the most sensible place to fix the
issue. For Subversion working copies it becomes a no-op anyway as
the directories already exist.

Regards
Patrick

[[[
tests: fix import tests for git mirrors

Subversion's import tests test behavior when importing empty
directories. These empty directories are checked in as part of
our test data. This however breaks our import tests when using
Subversion's Git mirror at git.apache.org, as Git is unable to
version empty directories.

As our tests rely on the fact that these directories are indeed
empty it is not possible to work around the issue by creating a
`.gitkeep` file inside these directories, as is commonly done
with git. Instead, the issue is fixed inside the tests itself by
creating the directories if they do not already exist. This is in
fact a no-op for Subversion working copies and fixes tests for
Git repositories.

* subversion/tests/cmdline/import_tests.py:
  (import_inherited_ignores): Create empty directories if they do
                              not exist yet.
]]]

-- 
Patrick Steinhardt, Entwickler
elego Software Solutions GmbH, http://www.elego.de
Gebäude 12 (BIG), Gustav-Meyer-Allee 25, 13355 Berlin, Germany
Sitz der Gesellschaft: Berlin, USt-IdNr.: DE 163214194
Handelsregister: Amtsgericht Charlottenburg HRB 77719
Geschäftsführer: Olaf Wagner