netcfg CLI command:

Reintroduce flags to slience curl's status messages.

Change-Id: Iac0cc9b37726528e4ef2d9dbd8bb26a0af05919e
diff --git a/tools/test/bin/onos-netcfg b/tools/test/bin/onos-netcfg
index 3942428..57d605c 100755
--- a/tools/test/bin/onos-netcfg
+++ b/tools/test/bin/onos-netcfg
@@ -10,6 +10,6 @@
 file="${2:-$ONOS_ROOT/tools/test/topos/oe-linear-3.json}"
 url="${3}"
 
-curl --fail -L --user $ONOS_WEB_USER:$ONOS_WEB_PASS \
+curl --fail -sSL --user $ONOS_WEB_USER:$ONOS_WEB_PASS \
     -X POST -H 'Content-Type:application/json' \
     http://$node:8181/onos/v1/network/configuration/${url} -d@$file