/usr/share/doc/ is in libraw-doc 0.14.4-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libraw-doc/
/usr/share/doc/libraw-doc/API-C-eng.html
/usr/share/doc/libraw-doc/API-C-rus.html
/usr/share/doc/libraw-doc/API-CXX-eng.html
/usr/share/doc/libraw-doc/API-CXX-rus.html
/usr/share/doc/libraw-doc/API-datastruct-eng.html
/usr/share/doc/libraw-doc/API-datastruct-rus.html
/usr/share/doc/libraw-doc/API-notes-eng.html
/usr/share/doc/libraw-doc/API-notes-rus.html
/usr/share/doc/libraw-doc/API-overview-eng.html
/usr/share/doc/libraw-doc/API-overview-rus.html
/usr/share/doc/libraw-doc/index-eng.html
/usr/share/doc/libraw-doc/index-rus.html
/usr/share/doc/libraw-doc/index.html
/usr/share/doc/libraw-doc/Install-LibRaw-eng.html
/usr/share/doc/libraw-doc/Install-LibRaw-rus.html
/usr/share/doc/libraw-doc/Samples-LibRaw-eng.html
/usr/share/doc/libraw-doc/Samples-LibRaw-rus.html
/usr/share/doc/libraw-doc/Why-LibRaw-eng.html
/usr/share/doc/libraw-doc/Why-LibRaw-rus.html
/usr/share/doc/libraw-doc/copyright
/usr/share/doc/libraw-doc/changelog.Debian.gz
/usr/share/doc-base/libraw