Title: #5435: whitespace_test: fix exclusion of debian directory
I maintain SSSD packages in a Debian derivative, hence have a debian directory in the
repository root. This test was failing in some custom build environments, due to
whitespace in files below that directory - so it is a downstream issue.
I am guessing that it is the debian packaging directory that the test is intending to
ignore, but I'm not sure why it was explicitly ignored. It looks like it has been in
place since the test was added:
. Even back
then I don't see a debian directory in the source tree.
See the full comment at https://github.com/SSSD/sssd/pull/5435#issuecomment-756060778