Fix broken dxGetTextWidth caused by 625e86b (#1584)

Author: qaisjp

Client/mods/deathmatch/logic/luadefs/CLuaDrawingDefs.cpp

@@ -33,7 +33,7 @@ void CLuaDrawingDefs::LoadFunctions()
         {"dxDrawMaterialPrimitive", DxDrawMaterialPrimitive},
         {"dxDrawMaterialPrimitive3D", DxDrawMaterialPrimitive3D},
         {"dxDrawWiredSphere", ArgumentParser<DxDrawWiredSphere>},
-        {"dxGetTextWidth", ArgumentParser<DxGetTextWidth>},
+        {"dxGetTextWidth", DxGetTextWidth},
         {"dxGetTextSize", ArgumentParser<DxGetTextSize>},
         {"dxGetFontHeight", DxGetFontHeight},
         {"dxCreateFont", DxCreateFont},