cleanup some code around detecting errors

tes/apiendpoints.py

@@ -261,6 +261,7 @@ class JobStat(Resource):
             return apiabort(400, message="Missing required parameter {}\n{}".format(e,traceback.format_exc()))
 
         rv = wrap_execute(sshsess, host=host, user=user, cmd=cmd)
+        return rv
 
 class MkDir(Resource):
     def post(self):