tree data UPDATE allow using llist predicate for state leaf-lists
diff --git a/src/tree_data.h b/src/tree_data.h
index cfed40b..db78a4b 100644
--- a/src/tree_data.h
+++ b/src/tree_data.h
@@ -1519,7 +1519,8 @@
* Also, if a leaf-list is being created and both a predicate is defined in @p path
* and @p value is set, the predicate is preferred.
*
- * For key-less lists and non-configuration leaf-lists, positional predicates should be used (indices starting from 1).
+ * For key-less lists, positional predicates must be used (indices starting from 1). For non-configuration leaf-lists
+ * either positional predicate can be used or leaf-list predicate, when an instance is always created at the end.
* If no predicate is used for these nodes, they are always created.
*
* @param[in] parent Data parent to add to/modify, can be NULL. Note that in case a first top-level sibling is used,