[PATCH] Install config files

[Alfred M. Szmidt]

   > Correct order is for `make install [DESTDIR=...]' to not touch
   > SYSCONFDIR.

   No.  The files are part of glibc, so they are supposed to be
   installed.

This is not going forward.  It has nothing to do with glibc being
special, it has to do with plain old semantics for how `make install'
works across all GNU projects -- and that is not to modify existing
files in SYSCONFDIR.

What is wrong with `make install-sysconf' or even putting them in
DATADIR?  If they are so special and should not be modifed, then they
should go under DATADIR, but if they are meant to be modified by a
human then they should not be overwritten.