/etc/ is in asciidoc-base 8.6.10-2.
This file is owned by root:root, with mode 0o755.
..
/etc/asciidoc/
/etc/asciidoc/filters/
/etc/asciidoc/filters/code/
/etc/asciidoc/filters/code/code-filter-readme.txt
/etc/asciidoc/filters/code/code-filter-test.txt
/etc/asciidoc/filters/code/code-filter.conf
/etc/asciidoc/filters/code/code-filter.py
/etc/asciidoc/filters/graphviz/
/etc/asciidoc/filters/graphviz/asciidoc-graphviz-sample.txt
/etc/asciidoc/filters/graphviz/graphviz-filter.conf
/etc/asciidoc/filters/graphviz/graphviz2png.py
/etc/asciidoc/filters/latex/
/etc/asciidoc/filters/latex/latex-filter.conf
/etc/asciidoc/filters/latex/latex2img.py
/etc/asciidoc/filters/music/
/etc/asciidoc/filters/music/music-filter-test.txt
/etc/asciidoc/filters/music/music-filter.conf
/etc/asciidoc/filters/music/music2png.py
/etc/asciidoc/filters/source/
/etc/asciidoc/filters/source/source-highlight-filter-test.txt
/etc/asciidoc/filters/source/source-highlight-filter.conf
/etc/asciidoc/filters/unwraplatex.py