Fix typo in `serialize.lua`.

diff --git a/builtin/common/serialize.lua b/builtin/common/serialize.lua
index 1054f8eacc5c74ece17fc030f6d97ea9a318aebe..b7643b2f4c1c15842729f93aa14a4a44472a8aba 100644 (file)
--- a/builtin/common/serialize.lua
+++ b/builtin/common/serialize.lua
@@ -140,7 +140,7 @@ function core.serialize(x)
                        end
                        return "{"..table.concat(vals, ", ").."}"
                else
-                       error("Can't serialize data of type "..t)
+                       error("Can't serialize data of type "..tp)
                end
        end