useless blank lines are removed.
diff --git a/openflow_input/oxm-1.2 b/openflow_input/oxm-1.2
index 9ee3817..5006cff 100644
--- a/openflow_input/oxm-1.2
+++ b/openflow_input/oxm-1.2
@@ -431,4 +431,3 @@
     uint16_t value;
     uint16_t value_mask;
 };
-
diff --git a/openflow_input/standard-1.3 b/openflow_input/standard-1.3
index 54e2e5f..19940ac 100644
--- a/openflow_input/standard-1.3
+++ b/openflow_input/standard-1.3
@@ -2119,4 +2119,3 @@
     uint32_t flow_removed_mask_equal_master;
     uint32_t flow_removed_mask_slave;
 };
-