session REFACTOR formatting
diff --git a/src/session_client.c b/src/session_client.c
index 10b4b35..7e0f5e8 100644
--- a/src/session_client.c
+++ b/src/session_client.c
@@ -2300,6 +2300,7 @@
struct nc_session *session;
nc_notif_dispatch_clb notif_clb;
void *user_data;
+
void (*free_data)(void *);
struct lyd_node *envp, *op;
NC_MSG_TYPE msgtype;
diff --git a/src/session_p.h b/src/session_p.h
index 62f7b55..37e605c 100644
--- a/src/session_p.h
+++ b/src/session_p.h
@@ -522,6 +522,7 @@
struct nc_session *session;
nc_notif_dispatch_clb notif_clb;
void *user_data;
+
void (*free_data)(void *);
};