ToME: the Tales of Maj'Eyal

If you bring up the equip dialog and mouseover Snow Giant Wraps, you get a lua error, but it doesn't appear when you mouseover the wraps while in the 'w'ear dialog.

Lua Error: /engine/utils.lua:743: bad argument #5 to 'drawStringBlended' (number expected, got nil)
At [C]:-1
At [C]:-1 drawStringBlended
At /engine/utils.lua:743 drawOnSurface
At /engine/Tooltip.lua:86 display
At /engine/Tooltip.lua:120 displayAtMap
At /mod/dialogs/ShowEquipInven.lua:32 on_select
At /engine/dialogs/ShowEquipInven.lua:143 select
At /engine/dialogs/ShowEquipInven.lua:149 on_focus
At /engine/ui/Dialog.lua:369 setFocus
At /engine/ui/Dialog.lua:420 mouseEvent
At /engine/ui/Dialog.lua:238 fct
At /engine/Mouse.lua:51

Is there any way to manually fix this in whatever .lua file is kvetching out over this thing? Like, get ridda the comma after [DamageType.LIGHTNING] = 10 but before the }?