Documentation: update tutorial's discussion of origin

diff --git a/tree.c b/tree.c
index ea386e506659c65224cfe55bdc4f8d086171637a..b6f02fecc46ec4633dc1ee75f38bc90761a4fbe3 100644 (file)
--- a/tree.c
+++ b/tree.c
@@ -4,7 +4,6 @@
 #include "commit.h"
 #include "tag.h"
 #include "tree-walk.h"
-#include <stdlib.h>
 
 const char *tree_type = "tree";