Make sha1_array_append take a struct object_id *

Convert the callers to pass struct object_id by changing the function
declaration and definition and applying the following semantic patch:

@@
expression E1, E2;
@@
- sha1_array_append(E1, E2.hash)
+ sha1_array_append(E1, &E2)

@@
expression E1, E2;
@@
- sha1_array_append(E1, E2->hash)
+ sha1_array_append(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/helper/test-sha1-array.c

@@ -19,7 +19,7 @@ int cmd_main(int argc, const char **argv)
 		if (skip_prefix(line.buf, "append ", &arg)) {
 			if (get_oid_hex(arg, &oid))
 				die("not a hexadecimal SHA1: %s", arg);
-			sha1_array_append(&array, oid.hash);
+			sha1_array_append(&array, &oid);
 		} else if (skip_prefix(line.buf, "lookup ", &arg)) {
 			if (get_oid_hex(arg, &oid))
 				die("not a hexadecimal SHA1: %s", arg);