fix whitespace

The whitespace-fixing script seems to be slightly different depending on the platform.
Even though it produces no effect in the CI, it made these changes locally on my Mac.
I'm committing them now so as to avoid unrelated files being changed in other pull requests.

data/ai/lua/ca_simple_scouting.lua

@@ -58,4 +58,4 @@ function simple_scouting:execution(cfg, data, filter_own)
     end
 end
 
-return simple_scouting
+return simple_scouting

data/ai/lua/cache.lua

@@ -21,4 +21,4 @@ return {
 		end
 	end
 
-}
+}

data/ai/lua/debug.lua

@@ -33,4 +33,4 @@ return {
 
 	end
 
-}
+}

data/ai/lua/extCAexample.lua

@@ -18,4 +18,4 @@ function example_ca:execution()
     ai.attack(3, 11, 3, 12)
 end
 
-return example_ca
+return example_ca

data/ai/micro_ais/mai-defs/bottleneck.lua

@@ -17,4 +17,4 @@ function wesnoth.micro_ais.bottleneck_defense(cfg)
 		{ ca_id = 'attack', location = 'ca_bottleneck_attack.lua', score = score - 1 }
 	}
     return required_keys, optional_keys, CA_parms
-end
+end

data/ai/micro_ais/mai-defs/healers.lua

@@ -14,4 +14,4 @@ function wesnoth.micro_ais.healer_support(cfg)
 		table.insert(CA_parms, { ca_id = 'may_attack', location = 'ca_healer_may_attack.lua', score = 99900 })
 	end
     return {}, optional_keys, CA_parms
-end
+end

data/ai/micro_ais/mai-defs/recruiting.lua

@@ -37,4 +37,4 @@ function wesnoth.micro_ais.recruit_random(cfg)
 
 	handle_default_recruitment(cfg)
     return {}, optional_keys, CA_parms
-end
+end

data/campaigns/Winds_of_Fate/lua/lua.lua

@@ -69,4 +69,4 @@ local function determine_advantage()
 	return result
 end
 
-return determine_advantage()
+return determine_advantage()

data/campaigns/World_Conquest/lua/game_mechanics/supply.lua

@@ -29,4 +29,4 @@ function wesnoth.wml_actions.wc2_map_supply_village(t)
 		image = supply_images[supply_image],
 		z_order = -10,
 	}
-end
+end