Bug#340657: /usr/src/linux information in Sarge release notes

[John Talbut <john@dpets.demon.co.uk>]

Package: Release Notes for Debian GNU/Linux 3.1 (`sarge')

The following information/patch is desirable under  5.2 Upgrading to a 
2.6 kernel:

If for any reason you are using software that refers to /usr/src/linux, 
note that is likely to contain out of date files or links to the 
previous version of the kernel after upgrading.  Normally Debian 
packages do not use /usr/src/linux.  If it is still needed you can 
probably delete the old folder (or rename it to, e.g. /usr/src/oldlinux 
just for safety) and then replace it with a symlink to the new kernel 
source, e.g.

cd /usr/src/
ln -s kernel-source-2.6.8 linux