This update fixes the following issues with texlive-specs-n:

- Port back changes for bsd_glob of latexmk(.pl). (bsc#1094731)
- Use font-config macros *with* xorg-x11-fonts-core (for encodings), mkfontdir (ditto), and mkfontscale. (bsc#1083212)
- Avoid broken scripts due former env correction, only repair those scripts where the shebang exists .
- Switch over to python 3. (bsc#1077170)
- Avoid nasty warning about missing batchmode in ENVironment.

This update was imported from the SUSE:SLE-15:Update update project.