samba, rsync --backup, and mangled instead of long filenames

[Dale Scott]

> The easy fix is don't use colons, as in date +%FT%H%M%S...
 > suffix=`date +%FT%H%M%S`.dwg will work.

Thanks Noel, that works perfect for now!

> ...maybe --
> suffix=`date +%FT%H%M%S`.dwg will work.

Had thought about adding .dwg to the suffix, but unfortunately I have to
deal with other file types as well. I had wondered if using zfs with
snapshots might work better than rsync - but that's too much to learn to
consider further at the moment.