/usr/share/ is in lupin-support 0.57build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/lupin-support/
/usr/share/doc/lupin-support/changelog.gz
/usr/share/doc/lupin-support/copyright
/usr/share/initramfs-tools/
/usr/share/initramfs-tools/hooks/
/usr/share/initramfs-tools/hooks/lupin_setup
/usr/share/initramfs-tools/hooks/root_locale
/usr/share/initramfs-tools/scripts/
/usr/share/initramfs-tools/scripts/local-bottom/
/usr/share/initramfs-tools/scripts/local-bottom/lupin_setup
/usr/share/initramfs-tools/scripts/local-premount/
/usr/share/initramfs-tools/scripts/local-premount/root_locale
/usr/share/lupin-support/
/usr/share/lupin-support/grub-mkimage