/usr/share/doc-base/libvorbis is in libvorbis-dev 1.3.2-1.3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | Document: libvorbis
Author: The Xiph.org Foundation
Section: Sound
Title: The Vorbis library technical reference
Format: HTML
Index: /usr/share/doc/libvorbis-dev/html/index.html
Files: /usr/share/doc/libvorbis-dev/html/*
|