Update license headers for plugins and includes.

plugins/dod/statssounds.sma

@@ -1,6 +1,15 @@
-/*
-* Plugin for sounds precache
-*/
+// vim: set ts=4 sw=4 tw=99 noet:
+//
+// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
+// Copyright (C) The AMX Mod X Development Team.
+//
+// This software is licensed under the GNU General Public License, version 3 or higher.
+// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
+//     https://alliedmods.net/amxmodx-license
+
+//
+// DoD Sounds Precache Plugin
+//
 
 #include <amxmodx>
 
@@ -26,4 +35,4 @@ public plugin_precache(){
 
 public plugin_init() {
   register_plugin("DoD Sounds Precache",AMXX_VERSION_STR,"AMXX Dev Team")
-}
+}