archive-*.c: use the right repository

With 'struct archive_args' gaining new repository pointer, we don't
have to assume the_repository in the archive backends anymore.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

archive-tar.c

@@ -277,7 +277,7 @@ static int write_tar_entry(struct archiver_args *args,
 		memcpy(header.name, path, pathlen);
 
 	if (S_ISREG(mode) && !args->convert &&
-	    oid_object_info(the_repository, oid, &size) == OBJ_BLOB &&
+	    oid_object_info(args->repo, oid, &size) == OBJ_BLOB &&
 	    size > big_file_threshold)
 		buffer = NULL;
 	else if (S_ISLNK(mode) || S_ISREG(mode)) {

archive-zip.c

@@ -326,7 +326,7 @@ static int write_zip_entry(struct archiver_args *args,
 		compressed_size = 0;
 		buffer = NULL;
 	} else if (S_ISREG(mode) || S_ISLNK(mode)) {
-		enum object_type type = oid_object_info(the_repository, oid,
+		enum object_type type = oid_object_info(args->repo, oid,
 							&size);
 
 		method = 0;