[PATCH 28/33] builtin/diff-tree: cleanup references to sha1

@@ -7,7 +7,7 @@
 
 static struct rev_info log_tree_opt;
 
-static int diff_tree_commit_sha1(const struct object_id *oid)
+static int diff_tree_commit_oid(const struct object_id *oid)
 {
 	struct commit *commit = lookup_commit_reference(oid);
 	if (!commit)

@@ -98,7 +98,6 @@ static void diff_tree_tweak_rev(struct rev_info *rev, struct setup_revision_opt
 
 int cmd_diff_tree(int argc, const char **argv, const char *prefix)
 {
-	int nr_sha1;
 	char line[1000];
 	struct object *tree1, *tree2;
 	static struct rev_info *opt = &log_tree_opt;

@@ -132,15 +131,14 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
 	 * reverse the order of the objects if the second one
 	 * is marked UNINTERESTING.
 	 */
-	nr_sha1 = opt->pending.nr;
-	switch (nr_sha1) {
+	switch (opt->pending.nr) {
 	case 0:
 		if (!read_stdin)
 			usage(diff_tree_usage);
 		break;
 	case 1:
 		tree1 = opt->pending.objects[0].item;
-		diff_tree_commit_sha1(&tree1->oid);
+		diff_tree_commit_oid(&tree1->oid);
 		break;
 	case 2:
 		tree1 = opt->pending.objects[0].item;