4 files changed, 14 insertions, 6 deletions
diff --git a/railties/lib/rails/command/actions.rb b/railties/lib/rails/command/actions.rb
index a00e58997c..cbb743346b 100644
--- a/railties/lib/rails/command/actions.rb
+++ b/railties/lib/rails/command/actions.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 module Rails
   module Command
     module Actions
-      # Change to the application's path if there is no config.ru file in current directory.
-      # This allows us to run `rails server` from other directories, but still get
-      # the main config.ru and properly set the tmp directory.
+      # Change to the application's path if there is no <tt>config.ru</tt> file in current directory.
+      # This allows us to run <tt>rails server</tt> from other directories, but still get
+      # the main <tt>config.ru</tt> and properly set the <tt>tmp</tt> directory.
       def set_application_directory!
         Dir.chdir(File.expand_path("../..", APP_PATH)) unless File.exist?(File.expand_path("config.ru"))
       end
diff --git a/railties/lib/rails/command/base.rb b/railties/lib/rails/command/base.rb
index cd0720be4e..8df4f98d3e 100644
--- a/railties/lib/rails/command/base.rb
+++ b/railties/lib/rails/command/base.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "thor"
 require "erb"
 
@@ -73,7 +75,7 @@ module Rails
 
         # Use Rails' default banner.
         def banner(*)
-          "#{executable} #{arguments.map(&:usage).join(' ')} [options]".squish!
+          "#{executable} #{arguments.map(&:usage).join(' ')} [options]".squish
         end
 
         # Sets the base_name taking into account the current class namespace.
@@ -110,8 +112,8 @@ module Rails
         # Default file root to place extra files a command might need, placed
         # one folder above the command file.
         #
-        # For a `Rails::Command::TestCommand` placed in `rails/command/test_command.rb`
-        # would return `rails/test`.
+        # For a Rails::Command::TestCommand placed in <tt>rails/command/test_command.rb</tt>
+        # would return <tt>rails/test</tt>.
         def default_command_root
           path = File.expand_path(File.join("../commands", command_root_namespace), __dir__)
           path if File.exist?(path)
diff --git a/railties/lib/rails/command/behavior.rb b/railties/lib/rails/command/behavior.rb
index 4a92f72f16..7a6dd28e1a 100644
--- a/railties/lib/rails/command/behavior.rb
+++ b/railties/lib/rails/command/behavior.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support"
 
 module Rails
diff --git a/railties/lib/rails/command/environment_argument.rb b/railties/lib/rails/command/environment_argument.rb
index 9582509840..5dc98b113d 100644
--- a/railties/lib/rails/command/environment_argument.rb
+++ b/railties/lib/rails/command/environment_argument.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support"
 
 module Rails