[jhbuild] (3 commits) Non-fast-forward update to branch distutils-default-python2

[Christoph Reiter <creiter src gnome org>]

The branch 'distutils-default-python2' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c683ffd... distutils: default to python2, python can point to Python 3

Commits added to the branch:

  9a812d1... Fix warnings reported by shellcheck (*)
  6c9e2ef... Update Serbian translation (*)
  17e48ba... distutils: default to python2, python can point to Python 3

(*) This commit already existed in another branch; no separate mail sent