* Update for C++ changes in egcs-1.1. Thanks to Andrew Stitcher.
* Update a greatly improved prcs.el from Jesse Glick. See the new
documentation at the top of prcs.el.
* Fixed a few documentation typos. Thanks to Fran\xe7ois Pinard and
Daniel Villeneuve.
* Change the output of the "Index: " line in diff output so that the
Index line matches the from name in the context diff header. This
seemed to cause problems for some versions of patch.
* prcs info -l now outputs Project-Keywords.
* The configure option --disable-environment allows you to build
a binary free of any default environment variable settings. This
is intended for package maintainers.
Also fixes PR 5209 by installing the el-files to share/examples/prcs.
packages collection, from the FreeBSD port. This is a tool for
version control, similar to CVS, but much simpler, and uses an
interesting binary diff utility called xdelta.