apt-get update: exit code 0 even when failing
from my "bug-report for apt":bugs.debian.org/cgi-bin/bugreport.cgi?bug=696335
apt-get update still exits with an exit-code 0, even if it fails (i.e. due to network connection error).
so in the meantime we need a little wrapper script that:
- executes apt-get update
- parses the output for possible errors
- returns a adequate exit code
(from redmine: created on 2012-12-19, closed on 2013-04-02, relates #1091, relates #1609)