Fix USER_JOB_WRAPPER when executable isn't transferred. #6904
Fix USER_JOB_WRAPPER when executable isn't transferred. #6904

When a USER_JOB_WRAPPER is configured, don't try to rename argv[0] to
condor_exec.exe. This causes failures after the recent changes for
singularity.

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