dtc: Whitespace cleanup

This large patch removes all trailing whitespace from dtc (including
libfdt, the testsuite and documentation).  It also removes a handful
of redundant blank lines (at the end of functions, or when there are
two blank lines together for no particular reason).

As well as anything else, this means that quilt won't whinge when I go
to convert the whole of libfdt into a patch to apply to the kernel.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

fstree.c

@@ -1,7 +1,7 @@
 /*
  * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
  *
- * 
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation; either version 2 of the
@@ -11,11 +11,11 @@
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  General Public License for more details.
- *                                                                       
- *  You should have received a copy of the GNU General Public License    
- *  along with this program; if not, write to the Free Software          
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 
- *                                                                   USA 
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
  */
 
 #include "dtc.h"
@@ -44,7 +44,7 @@ static struct node *read_fstree(char *dirname)
 			continue;
 
 		tmpnam = join_path(dirname, de->d_name);
-		
+
 		if (lstat(tmpnam, &st) < 0)
 			die("stat(%s): %s\n", tmpnam, strerror(errno));