[PATCH] Prepare diffcore interface for diff-tree header supression.

This does not actually supress the extra headers when pickaxe is
used, but prepares enough support for diff-tree to implement it.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/diff-files.c b/diff-files.c
index 6dca9e0..a47bd43 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -92,9 +92,7 @@
 		exit(1);
 	}
 
-	diff_setup(detect_rename, diff_score_opt, pickaxe,
-		   reverse_diff, (generate_patch ? -1 : line_termination),
-		   NULL, 0);
+	diff_setup(reverse_diff, (generate_patch ? -1 : line_termination));
 
 	for (i = 0; i < entries; i++) {
 		struct stat st;
@@ -136,6 +134,10 @@
 		show_modified(oldmode, mode, ce->sha1, null_sha1,
 			      ce->name);
 	}
-	diff_flush();
+	if (detect_rename)
+		diff_detect_rename(detect_rename, diff_score_opt);
+	if (pickaxe)
+		diff_pickaxe(pickaxe);
+	diff_flush(NULL, 0);
 	return 0;
 }