Fix malformed patch format.

For some reason, the leading spaces were missing.

util/openflow-patches/datapath.patch

@@ -3,24 +3,24 @@ index 4a4d3a2..365aa25 100644
 --- a/datapath/datapath.c
 +++ b/datapath/datapath.c
 @@ -47,6 +47,9 @@
-
-#include "compat.h"
-
+ 
+ #include "compat.h"
+ 
 +#ifdef CONFIG_NET_NS
 +#include <net/net_namespace.h>
 +#endif
-
-/* Strings to describe the manufacturer, hardware, and software.  This data 
- * is queriable through the switch description stats message. */
-@@ -259,7 +262,11 @@ send_openflow_skb(const struct datapath *dp,
-                 struct sk_buff *skb, const struct sender *sender)
-{
-       return (sender
+ 
+ /* Strings to describe the manufacturer, hardware, and software.  This data
+  * is queriable through the switch description stats message. */
+@@ -259,6 +262,10 @@ send_openflow_skb(const struct datapath *dp,
+                  struct sk_buff *skb, const struct sender *sender)
+ {
+        return (sender
 -               ? genlmsg_unicast(skb, sender->pid)
 +#ifdef CONFIG_NET_NS
 +               ? genlmsg_unicast(&init_net, skb, sender->pid)
 +#else
 +               ? genlmsg_unicast(skb, sender->pid)
 +#endif
-               : genlmsg_multicast(skb, 0, dp_mc_group(dp), GFP_ATOMIC));
-}
+                : genlmsg_multicast(skb, 0, dp_mc_group(dp), GFP_ATOMIC));
+ }