Adding a zeronet user

src/freedombone

@@ -1602,7 +1602,7 @@ function install_zeronet {
   apt-get -y install python python-msgpack python-gevent python-pip
   pip install msgpack-python --upgrade
 
-  adduser --home /opt/zeronet/ --shell /bin/false --no-create-home --ingroup daemon --disabled-password --disabled-login zeronet
+  useradd --home /opt/zeronet/ --shell /sbin/nologin --user-group daemon zeronet
   git clone $ZERONET_REPO /opt/zeronet
   sudo chown -R zeronet:zeronet /opt/zeronet