Bug#429617: Bug in line 227 of update-exim4.conf

[Silvestre Zabala]

I ran into the same problems, and as I had a modified exim4-conf I
moved away /etc/exim4 and tried to reinstall exim4-conf to no avail:

Running update-exim4.conf with bash -x I saw the following:

[...]
+ UPEX4C_internal_tmp=/tmp/ex4XdyiYF
+ trap 'rm -f /tmp/ex4XdyiYF' EXIT INT TERM
+ gentmpconf
+ rm -f /var/lib/exim4/config.autogenerated.tmp
+ touch /var/lib/exim4/config.autogenerated.tmp
++ id -u
+ '[' 0 = 0 ']'
+ chown root:Debian-exim /var/lib/exim4/config.autogenerated.tmp
+ '[' -e /var/lib/exim4/config.autogenerated ']'
+ chmod 640 /var/lib/exim4/config.autogenerated.tmp
+ '[' -e /var/lib/exim4/config.autogenerated ']'
+ rm -f /tmp/ex4XdyiYF

So for me the fix was to insert a
return 0
after line 227 in update-exim4.conf.

Hope that helps,
  Silvestre