DECnet/E Y2K bugfix

[Paul Koning via cctalk]

I just made some small changes to the DECnet/E event logger application to fix 
a Y2K problem.  (More precisely, a Y2K.003 problem).

https://github.com/pkoning2/decstuff

This is for RSTS V10.1.  Just drop the new evtlog.tsk into [0,16].

        paul