Hungarian: rST localisation for language "hu" not found

[Jan Beich]

Thierry Thomas <thierry at freebsd.org> writes:

> [dochtml]   File "/wrkdirs/usr/ports/math/sage/work/build/usr/local/lib/python3.7/site-packages/sage_setup/docbuild/__main__.py", line 2, in <module>
> [dochtml]     main()
> [dochtml]   File "/wrkdirs/usr/ports/math/sage/work/build/usr/local/lib/python3.7/site-packages/sage_setup/docbuild/__init__.py", line 1729, in main
> [dochtml]     builder()
> [dochtml]   File "/wrkdirs/usr/ports/math/sage/work/build/usr/local/lib/python3.7/site-packages/sage_setup/docbuild/__init__.py", line 353, in _wrapper
> [dochtml]     build_many(build_other_doc, L)
> [dochtml]   File "/wrkdirs/usr/ports/math/sage/work/build/usr/local/lib/python3.7/site-packages/sage_setup/docbuild/__init__.py", line 296, in build_many
> [dochtml]     _build_many(target, args, processes=NUM_THREADS)
> [dochtml]   File "/wrkdirs/usr/ports/math/sage/work/build/usr/local/lib/python3.7/site-packages/sage_setup/docbuild/utils.py", line 289, in build_many
> [dochtml]     raise worker_exc.original_exception
> [dochtml] OSError: /wrkdirs/usr/ports/math/sage/work/sage-9.2/src/doc/hu/a_tour_of_sage/index.rst:: WARNING: rST localisation for language "hu" not found.

Probably regressed by https://cgit.freebsd.org/ports/commit/?h=dd90fb0afa60
via https://sourceforge.net/p/docutils/code/8465/

Sorry, I can't help with a fix.