gnulib-tool.py: Add a comment about coding style.

[Collin Funk]

Patch 0001 removes an unused instance variable from GLModule and
GLModuleSystem. I didn't notice these until now, but PyCharm finds no
refrences to them and removing them doesn't break anything. And

          $ grep '\.args' pygnulib/*.py

doesn't find any use of them. So I think it is safe to say they are
unused.

Patch 0002 adds a comment about "private" functions and instance
variables to main.py.

Collin

0001-gnulib-tool.py-Remove-some-unused-instance-variables.patch
Description: Text Data

0002-gnulib-tool.py-Add-a-comment-about-coding-style.patch
Description: Text Data