Format imported code

app/models/group.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Group < ApplicationRecord
   belongs_to :matches
   belongs_to :teams

app/models/group_stage.rb

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 class GroupStage < ApplicationRecord
 end

app/models/match.rb

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 class Match < ApplicationRecord
 end

app/models/playoff_stage.rb

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 class PlayoffStage < ApplicationRecord
 end

app/models/team.rb

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 class Team < ApplicationRecord
 end

db/migrate/20181111174658_create_groups.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateGroups < ActiveRecord::Migration[5.2]
   def change
     create_table :groups do |t|

db/migrate/20181111174759_create_group_stages.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateGroupStages < ActiveRecord::Migration[5.2]
   def change
     create_table :group_stages do |t|

db/migrate/20181111174944_create_matches.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateMatches < ActiveRecord::Migration[5.2]
   def change
     create_table :matches do |t|

db/migrate/20181111175026_create_playoff_stages.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreatePlayoffStages < ActiveRecord::Migration[5.2]
   def change
     create_table :playoff_stages do |t|

db/migrate/20181111175127_create_teams.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateTeams < ActiveRecord::Migration[5.2]
   def change
     create_table :teams do |t|

test/models/group_stage_test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'test_helper'
 
 class GroupStageTest < ActiveSupport::TestCase

test/models/group_test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'test_helper'
 
 class GroupTest < ActiveSupport::TestCase

test/models/match_test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'test_helper'
 
 class MatchTest < ActiveSupport::TestCase

test/models/playoff_stage_test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'test_helper'
 
 class PlayoffStageTest < ActiveSupport::TestCase

test/models/team_test.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'test_helper'
 
 class TeamTest < ActiveSupport::TestCase