[Minor] Fix format string

diff --git a/src/libserver/cfg_rcl.c b/src/libserver/cfg_rcl.c
index d5e30d8a74709a988ac54ce212442a2d1d78c609..4c069db9e47911e3a6279e5224d312649bb77166 100644 (file)
--- a/src/libserver/cfg_rcl.c
+++ b/src/libserver/cfg_rcl.c
@@ -3511,7 +3511,7 @@ rspamd_rcl_maybe_apply_lua_transform (struct rspamd_config *cfg)
        ucl_object_push_lua (L, cfg->rcl_obj, true);
 
        if ((ret = lua_pcall (L, 1, 2, err_idx)) != 0) {
-               msg_err ("call to rspamadm lua script failed (%d): %v", ret,
+               msg_err ("call to rspamadm lua script failed (%d): %s", ret,
                                lua_tostring (L, -1));
                lua_settop (L, 0);