stop logging user-agent in apache, fixes #6129

Change-Id: I66384ae4a723be063790362f70e57228a0f1539b
remove /etc/apt/preferences.d/fixed_rsyslog_anon_package (#6138)

This was a leftover from earlier versions, where we installed rsyslog
from the leap debian package repo.

Change-Id: I88a852f08b5aff3bd7b591b6220ac354463a9786
Merge branch '6138_fix_rsyslog-gnutls_install' into develop