ubifs: Fix typo of output in get_cs_sqnum

"Not a CS node" makes more sense than "Node a CS node".
Signed-off-by: Liu Song <liu.song11@zte.com.cn>
Reviewed-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Richard Weinberger <richard@nod.at>

fs/ubifs/recovery.c

@@ -818,7 +818,7 @@ static int get_cs_sqnum(struct ubifs_info *c, int lnum, int offs,
 		goto out_err;
 	}
 	if (cs_node->ch.node_type != UBIFS_CS_NODE) {
-		ubifs_err(c, "Node a CS node, type is %d", cs_node->ch.node_type);
+		ubifs_err(c, "Not a CS node, type is %d", cs_node->ch.node_type);
 		goto out_err;
 	}
 	if (le64_to_cpu(cs_node->cmt_no) != c->cmt_no) {