sugar-update-control: modifying files tracked by git

[sascha_silbe]

Filing against sugar as there is no Trac component for sugar-update-control yet.

Building/installing sugar-update-control modifies files that are tracked by git.
On a system where git isn't fully configured (i.e. anyone without commit rights) this will lead to sugar-jhbuild aborting with an error.

*** Checking out sugar-update-control *** [28/43]
git stash save jhbuild-stash
Saved working directory and index state "On master: jhbuild-stash"
HEAD is now at eb28914 Removed hardcoded reference to python2.5
git pull --rebase
Current branch master is up to date.
git stash pop
# On branch master
# Changed but not updated:
#   (use "git add <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#       modified:   po/sugar-update-control.pot
#
no changes added to commit (use "git add" and/or "git commit -a")
Dropped refs/stash@{0} (d493e5f17b852771c09942ff1fb10eb1301172da)

[sascha_silbe]

This is ​breaking our new buildslave now, upgrading to Blocker.

[tomeu]

the updater has been integrated into the sugar module