Fixed typo in the const-lambda cooling i/o function.

src/cooling/const_lambda/cooling_io.h

@@ -73,7 +73,7 @@ __attribute__((always_inline)) INLINE static int cooling_write_particles(
     const struct cooling_function_data* cooling) {
 
   list[0] = io_make_output_field_convert_part(
-      "Temperature", FLOAT, 0.f, 1, UNIT_CONV_TEMPERATURE, parts, xparts,
+      "Temperature", FLOAT, 1, UNIT_CONV_TEMPERATURE, 0.f, parts, xparts,
       convert_part_T, "Temperatures of the gas particles");
 
   list[1] = io_make_output_field(