(HTCONDOR-1145)  Unify [read|write]ShortFile(), part 3.
(HTCONDOR-1145)  Unify [read|write]ShortFile(), part 3.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor