Just for added interest, I tried a different method when the restart script broke.  The "start-elog-nodus" script has a line "kill elogd".  This seems not to be actually killing anything anymore, which means the elog can't restart.  So this time I went for "kill <pid number>", and then ran the startup script.  This worked.  So it's the "kill elogd" which isn't working reliably.