malformed return code in util/weekly_build/apptests/test_ufswm.sh

[BruceKropp-Raytheon]

Describe the bug
util/weekly_build/apptests/test_ufswm.sh (lines 20 and 21)

This bash script attempts to return command status as rc
but should return $rc
also the assignment of rc is malformed:

rc = $?
return rc

should be changed to:

rc=$?
return $rc

To Reproduce

1. running the script with valid args
2. an error is reported regarding the return code

Expected behavior
return code should be a standard bash return integer: 0, or non-zero

System:
Orion

Additional context
none