/usr/lib/ocaml/config-file/META is in libconfig-file-ocaml-dev 1.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | version="1.1"
description="a library to manage the configuration file(s) of an application"
archive(byte)="config_file.cmo"
archive(native)="config_file.cmx"
|