changed indentation to use spaces only

wmlib/app.h

@@ -1,19 +1,19 @@
 /* app.h - private declarations for application context
- * 
+ *
  * WMlib - WindowMaker application programming interface
- * 
+ *
  * Copyright (C) 1997-2003 Alfredo K. Kojima
- *  
+ *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 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
  *  Library General Public License for more details.
- *  
+ *
  *  You should have received a copy of the GNU Library General Public
  *  License along with this library; if not, write to the Free
  *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
@@ -32,8 +32,9 @@ typedef struct _wmAppContext {
     int win_count;		       /* size of windows array */
 
     WMMenu *main_menu;
-    
+
     int last_menu_tag;
 } wmAppContext;
 
 #endif
+