def setUpModule():
pathname = tempfile.mkdtemp()<EOL>TEMPORARY_DIRECTORIES.append(pathname)<EOL>os.environ['<STR_LIT>'] = pathname<EOL>os.chdir(pathname)<EOL>
Create a temporary ``$HOME`` directory (and use it as a working directory).

Rationale:

- The vcs-repo-mgr test suite ignores ``$HOME`` to avoid unintended
  interactions with local user preferences like automatic GPG signing by
  git (which the author of vcs-repo-mgr has enabled via ``~/.gitconfig``).

- The fake ``$HOME`` directory is used as a working directory so that the
  vcs-repo-mgr test suite doesn't run with the vcs-repo-mgr git repository
  as its working directory. That used to be the case and obscured a
  programming error that was fixed in vcs-repo-mgr 4.1.2.