* debian/rsyslog.postinst: Make sure /var/log is owned by group syslog and is group-writeable (LP: #1256695). * Ensure that rsyslogd can create files in group adm, even when dropping group privileges to syslog (LP: #484336): - debian/patches/10-initgroups.patch: Try to set appropriate supplementary groups before dropping UID. - debian/rsyslog.postinst: Add syslog user to group adm.