session CHANGE nc_accept is transport-independent

Binds therefore too.
diff --git a/src/session_client.c b/src/session_client.c
index d8be817..b1cd23e 100644
--- a/src/session_client.c
+++ b/src/session_client.c
@@ -858,7 +858,7 @@
                 data = NULL;
             }
             if (!schema) {
-                ERR("%s: internal error (%s:%d).", __func__, __FILE__, __LINE__);
+                ERRINT;
                 return NULL;
             }
             break;
@@ -877,7 +877,7 @@
         case NC_RPC_GETSCHEMA:
             schema = ly_ctx_get_node(ctx, "/ietf-netconf-monitoring:get-schema");
             if (!schema) {
-                ERR("%s: internal error (%s:%d).", __func__, __FILE__, __LINE__);
+                ERRINT;
                 return NULL;
             }
             break;