* amd/srvr_nfs.c (find_nfs_srvr): check to see if the IP address

* amd/srvr_nfs.c (find_nfs_srvr): check to see if the IP address
of a named but down fserver changed (i.e., the previous IP address
is no longer responding).  If so, then reset the fserver to the
new IP address, and set the fserver's flags such that the function
will fall through to doing the usual NFS version/proto checks and
pinging.  (This should fix one case of bug #308.)

* conf/umount/umount_linux.c (umount_fs): warn if plain umount()
failed, before we try to ignore any errors or try optional
umount2(), possibly with forced/lazy unmount.
(umount_fs): dlog when unmount succeeded.