/usr/lib/erlang/lib/gs-1.6/info is in erlang-doc 1:18.3-dfsg-1ubuntu3.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/erlang/lib/gs-1.6/../../../../share/doc/erlang-doc/lib/gs-1.6/info
/usr/lib/erlang/lib/gs-1.6/../../../../share/doc/erlang-doc/lib/gs-1.6/info