[Debian-astro-maintainers] Bug#856706: Set bug forwarded

[Ole Streicher]

Control: forwarded -1 PIPE-7104

I forwarded the bug to the ESO bug tracker. The bug tracker is not
public; therefore I can't give a complete URL here.

I am however pessimistic about getting this fixed for Stretch: Upstream
tends to not care too much about licensing issues, and I couldn't find a
way to replace the non-free functions with free equivalents. Help and
patches are welcome, however. GSL anyone?

Best regards

Ole