/etc/texmf/hyphen.d/20latex-cjk-chinese.cnf is in latex-cjk-chinese 4.8.2+git20111216-1.
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 | % 20latex-cjk-chinese.cnf
% You can change/add entries to this file and changes will be preserved
% over upgrades, even if you have removed the main package prior
% (not if you purged it). You should leave the following pseudo comment
% present in the file!
% -_- DebPkgProvidedMaps -_-
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name=pinyin file=loadhyph-zh-latn.tex lefthyphenmin=1 righthyphenmin=1
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