/usr/share/help/sl/ is in brasero-common 3.10.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/help/sl/brasero/
/usr/share/help/sl/brasero/create-cover.page
/usr/share/help/sl/brasero/figures/
/usr/share/help/sl/brasero/figures/brasero-main-window.png
/usr/share/help/sl/brasero/figures/logo32.png
/usr/share/help/sl/brasero/index.page
/usr/share/help/sl/brasero/introduction.page
/usr/share/help/sl/brasero/prob-cd.page
/usr/share/help/sl/brasero/prob-dvd.page
/usr/share/help/sl/brasero/project-audio.page
/usr/share/help/sl/brasero/project-data.page
/usr/share/help/sl/brasero/project-disc-copy.page
/usr/share/help/sl/brasero/project-image-burn.page
/usr/share/help/sl/brasero/project-save.page
/usr/share/help/sl/brasero/project-video.page
/usr/share/help/sl/brasero/split-track.page
/usr/share/help/sl/brasero/tools-blank.page
/usr/share/help/sl/brasero/tools-check-integrity.page