Bug#38604: Dpkg segfaults when purging a directory

[Javier Fernandez-Sanguino Pen~a <jfs@dat.etsit.upm.es>]

Package: dpkg
Version: 1.4.0.34

	Dpkg segfaults when doing --purge on a package whose directory (of
config files for example) has been already removed manually. I know this
should not be done by sysadmins, but neither should the packager segfault
in this case. Recommended action in --purge should be:

	a) remove directory/config file  *if it exists*
	b) remove package even if a) failed (but warn that config files
have been removed by another agent)

	Regards

	Javi