COPYING-DOCS not available
Submitted by Andreas Henriksson
help/C/legal.xml (and all other help/*/legal.xml similarly) contains:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License (GFDL), Version 1.1 or any later version published by the Free Software Foundation with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. You can find a copy of the GFDL at this <ulink type="help" url="help:fdl">link`</ulink>` or in the file COPYING-DOCS distributed with this manual.
Please note the "... or in the file COPYING-DOCS distributed with this manual."
There doesn't seem to be any COPYING-DOCS in the tarball (or in git) though....