exec 4<>$td/sentinel
x ssh $sshopts $rhost "$sshpfx $rsharedir/snap-drop $rvardir"
-ssh $sshopts $rhost "
+x ssh $sshopts $rhost "
$sshpfx
set -e
cd $rvardir
xwait rsum
exec 4<&-
date -u "+ $datefmt sumsdone"
-x ssh $sshopts $rhost "$sshpfx $rsharedir/snap-drop"
+x ssh $sshopts $rhost "$sshpfx $rsharedir/snap-drop $rvardir"
if [ "x${localprevious}" != x ] && test -f "$localprevious,rsums"; then
cp "$localprevious,rsums" "$localarea,rsums"