Bug#164422: xbase-clients: postrm purge does not remove /etc/X11/xsm

[<herbert@gondor.apana.org.au>]

Package: xbase-clients
Version: 4.1.0-17
Severity: normal

This directory contains a conffile.  Hence it needs to be removed
by hand in the postrm script.

-- System Information
Debian Release: testing/unstable
Kernel Version: Linux gondolin 2.4.18-686-smp #1 SMP Sun Apr 14 12:07:19 EST 2002 i686 unknown unknown GNU/Linux

Versions of the packages xbase-clients depends on:
ii  cpp            2.95.4-17      The GNU C preprocessor.
ii  debconf        1.0.32         Debian configuration management system
ii  libc6          2.2.5-14.3     GNU C Library: Shared libraries and Timezone
ii  libdps1        4.1.0-17       Display PostScript (DPS) client library
ii  libfreetype6   2.1.2-7        FreeType 2 font engine, shared library files
ii  libncurses5    5.2.20020112a- Shared libraries for terminal handling
ii  libxaw7        4.1.0-17       X Athena widget set library
ii  xlibs          4.1.0-17       X Window System client libraries
rc  xlibmesa3      4.1.0-14       XFree86 version of Mesa 3D graphics library
ii  mesag3         3.4.2.1-4      A 3-D graphics library which uses the OpenGL
	^^^ (Provides virtual package libgl1)