ns: make NetlinkSocketsTimeout const

NetlinkSocketsTimeout isn't changed, so it can be a const.

Signed-off-by: Tobias Klauser <[email protected]>

Author: tklauser

ns/init_linux.go

@@ -18,10 +18,11 @@ var (
 	initNs   netns.NsHandle
 	initNl   *netlink.Handle
 	initOnce sync.Once
-	// NetlinkSocketsTimeout represents the default timeout duration for the sockets
-	NetlinkSocketsTimeout = 3 * time.Second
 )
 
+// NetlinkSocketsTimeout represents the default timeout duration for the sockets
+const NetlinkSocketsTimeout = 3 * time.Second
+
 // Init initializes a new network namespace
 func Init() {
 	var err error