lib: fix setting temporary log options for libyang

By calling `ly_log_options` with `LY_LOSTORE`, the current code
effectively disables libyang logging and never enables it back. The call
is done to get the current logging options, but we don't really need
that. When looking for a schema node, we don't want neither to log nor
to store the error, so simply set the temporary options to 0.

Signed-off-by: Igor Ryzhov <[email protected]>

lib/northbound.c

@@ -157,16 +157,14 @@ void nb_nodes_delete(void)
 struct nb_node *nb_node_find(const char *path)
 {
 	const struct lysc_node *snode;
-	uint32_t llopts;
+	uint32_t llopts = 0;
 
 	/*
 	 * Use libyang to find the schema node associated to the path and get
 	 * the northbound node from there (snode private pointer). We need to
 	 * disable logging temporarily to avoid libyang from logging an error
 	 * message when the node is not found.
 	 */
-	llopts = ly_log_options(LY_LOSTORE);
-	llopts &= ~LY_LOLOG;
 	ly_temp_log_options(&llopts);
 
 	snode = yang_find_snode(ly_native_ctx, path, 0);