remove duplicate documentation, improve synopsis

diff --git a/newns b/newns
index 4bd1650f7179bddeb1ba0e09888d37d27bf49b31..dbe6598c19f3642b29e698c9d75111fb7a369359 100755 (executable)
--- a/newns
+++ b/newns
@@ -38,7 +38,7 @@ fi
 usage() {
     cat <<EOF
 usage: ${0##*/} [OPTS] start|stop NS_NAME
-Setup new or systemd created network namespace with nat and mount namespace
+Setup & optionally create, a network namespace with nat and a mount namespace
 
 -c, --create    Create a named network namespace. When running from
                 the same network namespace as pid 1, this is set automatically.
@@ -50,9 +50,6 @@ From within a systemd network namespace, nat it to the outside. This
 would be called from ExecStartPre, and or subsequent units called with
 JoinsNamespaceOf= and PrivateNetwork=true.
 
-If given -c, or if in the default network namespace, create a named
-network namepace natted to the current netns.
-
 Uses /24 network, finding the first locally unused one starting at
 10.173.0.