Bug#325901: exim4-config: leaves cruft on purge

[Lars Wirzenius]

Package: exim4-config
Version: 4.52-1
Severity: minor

Upon removal, exim4-config leaves /etc/default/exim4 on the system. As
far as I can see, it is created when updates-exim4defaults is called
from postinst; it should therefore be removed in postrm, I think.

/etc/aliases and /etc/mailname are also left on the system, but I am
less sure that they are bugs.

The relevant piuparts[1] snippet:

0m8.1s ERROR: Package purging left files on system:
  /etc/aliases
  /etc/default/exim4
  /etc/mailname

[1] See http://packages.debian.org/unstable/devel/piuparts)