Bug#962420: /usr/local/share/fonts owned by group staff even if /etc/staff-group-for-usr-local not present

[cacin at allfreemail.net]

Source: fontconfig
Justification: Policy 9.1.2
Followup-For: Bug #962420
Control: severity -1 serious

Policy [1] states: "If /etc/staff-group-for-usr-local does not exist,
/usr/local and all subdirectories created by packages should have
permissions 0755 and be owned by root:root"

/etc/staff-group-for-usr-local does not exist by default, but
/usr/local/share/fonts is owned by root:staff by default.

This is a policy violation, hence increasing severity.

[1] https://www.debian.org/doc/debian-policy/ch-opersys.html#site-specific-programs