Fixed uucp spool names
Fixed uucp spool names

The spool names only use the first seven chars of the hostname. I just
found this out when trying to set 'tektronix' up. I changed mkdirs to
make shorter spooldirs and tested it with two interconnected test sites.

DoctorWkt/4bsd-uucp,DoctorWkt/4bsd-uucp,DoctorWkt/4bsd-uucp