Use accessor functions fields for bg_flags in the block group descriptors

Signed-off-by: Valerie Aurora Henson <vaurora@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/lib/ext2fs/initialize.c b/lib/ext2fs/initialize.c
index 21fc293..73c4fec 100644
--- a/lib/ext2fs/initialize.c
+++ b/lib/ext2fs/initialize.c
@@ -401,9 +401,9 @@
 		 */
 		if (csum_flag) {
 			if (i != fs->group_desc_count - 1)
-				fs->group_desc[i].bg_flags |=
-					EXT2_BG_BLOCK_UNINIT;
-			fs->group_desc[i].bg_flags |= EXT2_BG_INODE_UNINIT;
+				ext2fs_bg_flag_set(fs, i, EXT2_BG_BLOCK_UNINIT)
+					;
+			ext2fs_bg_flag_set(fs, i, EXT2_BG_INODE_UNINIT);
 			numblocks = super->s_inodes_per_group;
 			if (i == 0)
 				numblocks -= super->s_first_ino;