libyang MAINTENANCE fox uninitialized vars warnings

Even though they all are false-positives.
diff --git a/src/context.c b/src/context.c
index d5bc77c..f4301c2 100644
--- a/src/context.c
+++ b/src/context.c
@@ -648,7 +648,7 @@
     int bis = 0, ret;
     char id[8], *str;
     const struct lys_module *mod;
-    struct lyd_node *root = NULL, *root_bis = NULL, *cont, *set_bis, *node;
+    struct lyd_node *root = NULL, *root_bis = NULL, *cont, *set_bis = NULL, *node;
 
     LY_CHECK_ARG_RET(ctx, ctx, NULL);