Possible misnamed constant in global variable map_type

[2TallTyler]

Global variable map_type includes three options:

nml/nml/global_constants.py

Lines 644 to 647 in 5f25e4d

	# map types (ttdp variable 0x13)
	"MAP_TYPE_X_BIGGER" : 0, # bit 0 and 1 clear
	"MAP_TYPE_RECTANGULAR" : 1, # bit 0 set
	"MAP_TYPE_Y_BIGGER" : 2, # bit 0 clear, bit 1 set

Since this option is returned when x==y, shouldn't MAP_TYPE_RECTANGULAR actually be MAP_TYPE_SQUARE?

[glx22]

From newgrf spec:

the type of map
- bit 0 set: squared map. Clear : rectangular map
- bit 1 set: Y is the bigger edge(bit 0 is clear). Clear : X is the bigger edge.

So yes, seems naming is wrong.