[execo_g5k] get_oar_job_nodes use network_address instead of host (to prepare change in oar)

src/execo_g5k/oar.py

@@ -577,7 +577,7 @@ def get_oar_job_nodes(oar_job_id = None, frontend = None,
             raise ValueError("no oar job id given and no OAR_JOB_ID environment variable found")
     countdown = Timer(timeout)
     wait_oar_job_start(oar_job_id, frontend, frontend_connection_params, countdown.remaining())
-    process = get_process("(oarstat -sj %(oar_job_id)i | grep 'Running\|Terminated\|Error') > /dev/null 2>&1 && oarstat -pj %(oar_job_id)i | oarprint host -f - | sort" % {'oar_job_id': oar_job_id},
+    process = get_process("(oarstat -sj %(oar_job_id)i | grep 'Running\|Terminated\|Error') > /dev/null 2>&1 && oarstat -pj %(oar_job_id)i | oarprint network_address -f - | sort" % {'oar_job_id': oar_job_id},
                           host = get_frontend_host(frontend),
                           connection_params = make_connection_params(frontend_connection_params,
                                                                      default_frontend_connection_params))