/usr/ is in ghostscript-cups 9.05~dfsg-0ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/cups/mime/
/usr/share/
/usr/share/doc/
/usr/share/doc/ghostscript-cups/
/usr/share/doc/ghostscript-cups/copyright
/usr/share/ppd/
/usr/share/ppd/ghostscript/
/usr/share/ppd/ghostscript/model/
/usr/share/ppd/ghostscript/model/pxlcolor.ppd
/usr/share/ppd/ghostscript/model/pxlmono.ppd
/usr/share/cups/
/usr/share/cups/mime/gstoraster.convs
/usr/share/cups/ppd-updaters/
/usr/share/cups/ppd-updaters/ghostscript-cups
/usr/lib/
/usr/lib/cups/
/usr/lib/cups/filter/
/usr/lib/cups/filter/gstopxl
/usr/lib/cups/filter/gstoraster
/usr/share/doc/ghostscript-cups/NEWS.Debian.gz
/usr/share/doc/ghostscript-cups/changelog.Debian.gz