Fix whitespace

Author: jamiebenstead

app/models/school.rb

@@ -142,7 +142,7 @@ def united_kingdom?
   def united_states?
     country_code == 'US'
   end
-              
+
   def ireland?
     country_code == 'IE'
   end

spec/models/school_spec.rb

@@ -238,7 +238,7 @@
       expect(new_school).to be_valid
       expect { new_school.save! }.not_to raise_error
     end
-    
+
     it 'does not require a school_roll_number for non-Ireland schools' do
       school.country_code = 'GB'
       school.school_roll_number = nil