Renames GLOB.cardinal to GLOB.cardinals to match GLOB.diagonals and GLOB.alldirs (#1970)

code/game/objects/effects/effect_system/effect_system.dm

@@ -60,7 +60,7 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	total_effects++
 	var/direction
 	if(cardinals)
-		direction = pick(GLOB.cardinal)
+		direction = pick(GLOB.cardinals)
 	else
 		direction = pick(GLOB.alldirs)
 	var/steps_amt = pick(1,2,3)

code/game/objects/effects/effect_system/effects_smoke.dm

@@ -84,7 +84,7 @@
 			smoke_mob(L)
 		var/obj/effect/particle_effect/smoke/S = new type(T)
 		reagents.copy_to(S, reagents.total_volume)
-		S.setDir(pick(GLOB.cardinal))
+		S.setDir(pick(GLOB.cardinals))
 		S.amount = amount-1
 		S.add_atom_colour(color, FIXED_COLOUR_PRIORITY)
 		S.lifetime = lifetime