Decided that limiting the message number columns to 3 on my scan.MMDDYY and

Decided that limiting the message number columns to 3 on my scan.MMDDYY and
scan.YYYYMMDD (to try to regain space taken by extra date info) was
ill-conceived.  It's not that tough to get past 999 messages, though I imagine
it's rather rare to exceed 9999.  Changed these to 4.  I had already removed the
"replied / encrypted" column in YYYYMMDD, but this time I removed it on MMDDYY
as well (I've never seen it used...).