packaging: setup: less strict parsing of pg_hba.conf

When checking the 'local' line, do not check exact spaces.

Code partially copied from engine.

Bug-Url: https://bugzilla.redhat.com/1085374
Change-Id: I25124c36de491de9aad0917f60b8f420168aa316
Signed-off-by: Yedidyah Bar David <didi@redhat.com>