Merge pull request #170 from mrjana/cnm_integ

Change default namespace path

libnetwork/sandbox/namespace_linux.go

@@ -12,7 +12,7 @@ import (
 	"github.com/vishvananda/netns"
 )
 
-const prefix = "/var/run/netns"
+const prefix = "/var/run/docker/netns"
 
 var once sync.Once