Bug#1002829: please document how to set nfsv4gracetime and nfsv4leasetime

[Harald Dunkel <harri@afaics.de>]

Package: nfs-kernel-server
Version: 1:1.3.4-6

I would like to reduce nfsv4gracetime and nfsv4leasetime from 90 sec
to something reasonable. Looking through several scripts and systemd
config files I figured out that I have to set

	RPCNFSDOPTS

in /etc/default/nfs-server.conf to make a helper script (called by
a systemd service) generate another config file in /run setting a
variable

	RPCNFSDARGS

which is then read by the nfs-kernel service to construct the
rpc.nfsd command line.

I am quite sure that this construct is not "Debian quality". Could
you please cleanup this mess for bookworm and improve the
documentation?

Thank you very much


Harri