Bug#182021: xlibs: Version string in configuration file

[Roland Turner <raz.qrovna.bet@raz.cx>]

Branden Robinson wrote:

> Dpkg is wrong, of course.
>
> Dpkg has no mechanism to handle conffiles disappearing across upgrades.

Is this just an implementation choice in dpkg, or is there
insufficient information in the existing .deb files to enable
dpkg to, say, remove unmodified configuration files when a
package is being deleted, even if it's not being purged?

(It is conceivable that someone, somewhere is depending upon
deletion-without-purging to leave even unmodified configuration
files intact, but I assume that the idea behind
deletion-without-purging is to preserve local _changes_, not
just local copies of a removed package's standard out-of-the-box
configuration.)

- Raz