move package description to a doc.go

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

doc.go

@@ -0,0 +1,9 @@
+// Package netns allows ultra-simple network namespace handling. NsHandles
+// can be retrieved and set. Note that the current namespace is thread
+// local so actions that set and reset namespaces should use LockOSThread
+// to make sure the namespace doesn't change due to a goroutine switch.
+// It is best to close NsHandles when you are done with them. This can be
+// accomplished via a `defer ns.Close()` on the handle. Changing namespaces
+// requires elevated privileges, so in most cases this code needs to be run
+// as root.
+package netns

netns.go

@@ -1,11 +1,3 @@
-// Package netns allows ultra-simple network namespace handling. NsHandles
-// can be retrieved and set. Note that the current namespace is thread
-// local so actions that set and reset namespaces should use LockOSThread
-// to make sure the namespace doesn't change due to a goroutine switch.
-// It is best to close NsHandles when you are done with them. This can be
-// accomplished via a `defer ns.Close()` on the handle. Changing namespaces
-// requires elevated privileges, so in most cases this code needs to be run
-// as root.
 package netns
 
 import (