Added LGPL standard comment, and copyright notices where necessary.
Global replacement of debugtools.h by wine/debug.h.

diff --git a/windows/msgbox.c b/windows/msgbox.c
index df922c4..788cdaf 100644
--- a/windows/msgbox.c
+++ b/windows/msgbox.c
@@ -2,6 +2,20 @@
  * Message boxes
  *
  * Copyright 1995 Bernd Schmidt
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <string.h>
@@ -13,9 +27,9 @@
 #include "dlgs.h"
 #include "heap.h"
 #include "user.h"
-#include "debugtools.h"
+#include "wine/debug.h"
 
-DEFAULT_DEBUG_CHANNEL(dialog);
+WINE_DEFAULT_DEBUG_CHANNEL(dialog);
 
 #define MSGBOX_IDICON 1088
 #define MSGBOX_IDTEXT 100