Enable the Layout/IndentHeredoc cop

.rubocop.yml

@@ -109,7 +109,7 @@ Layout/IndentHash:
   EnforcedStyle: consistent
 
 Layout/IndentHeredoc:
-  Enabled: false
+  Enabled: true
 
 Layout/IndentationConsistency:
   Enabled: false

config/initializers/apipie.rb

@@ -10,7 +10,7 @@ Apipie.configure do |config|
   config.namespaced_resources    = true
   config.show_all_examples       = true
 
-  config.app_info                = <<-EOS
+  config.app_info                = <<~EOS
     Description
 
   EOS

lib/tasks/dev.rake

@@ -14,16 +14,13 @@ namespace :dev do
     puts 'creating token.rb file'
     res = `rake secret`.delete("\n")
     file = File.new('config/initializers/token.rb', 'w+')
-    comment = <<EOF
-EOF
-    file.write(comment)
     file.write("TPS::Application.config.SIADETOKEN = '#{res}'")
     file.close
   end
 
   task :generate_franceconnect_file do
     file = File.new('config/france_connect.yml', 'w+')
-    comment = <<EOF
+    comment = <<~EOF
       particulier_identifier: plop
       particulier_secret: plip
 
@@ -40,7 +37,7 @@ EOF
 
   task :generate_fog_credentials_file do
     puts 'creating fog_credentials.test.yml file'
-    content = <<EOF
+    content = <<~EOF
       default:
         openstack_tenant: "ovh_fake_tenant_name"
         openstack_api_key: "ovh_fake_password"
@@ -55,7 +52,7 @@ EOF
 
   task :generate_features_file do
     puts 'creating features.yml file'
-    content = <<EOF
+    content = <<~EOF
       remote_storage: true
     EOF
     file = File.new("config/initializers/features.yml", "w+")