Bug#1866: xwpe should depend on xcompat

[Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl>]

Package: xwpe
Version: 1.4.1-1

xwpe requires old X library (libX11.so.3) which is in the xcompat
package.  But xwpe does not "depend" on xcompat.

Marek