Update docs for condor_store_cred to include the -H (handle) arg.  HTCONDOR-291
Update docs for condor_store_cred to include the -H (handle) arg.  HTCONDOR-291

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