That file was not part of the source release, ethereal-0.9.14.tar.bz2,
It wasn't in the EXTRA_DIST list in plugins/Makefile.am, so it didn't make it into the source tarball; I just now checked in a change to add it to EXTRA_DIST.
And Xepan_plugins.c can be scheduled for deletion from CVS...
I've already deleted it (and added Xass-list).
