The generated plugin should also freeze strings

The generated plugin should also freeze strings

diff --git a/lib/generators/plugin/templates/plugin.rb.erb b/lib/generators/plugin/templates/plugin.rb.erb
index bee7fa4..e5e9637 100644
--- a/lib/generators/plugin/templates/plugin.rb.erb
+++ b/lib/generators/plugin/templates/plugin.rb.erb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # name: <%= name %>
 # about: <%= @about %>
 # version: 0.1
@@ -10,7 +12,7 @@ register_asset 'stylesheets/mobile/<%= dasherized_name %>.scss'
 
 enabled_site_setting :<%= underscored_name %>_enabled
 
-PLUGIN_NAME ||= '<%= classified_name %>'.freeze
+PLUGIN_NAME ||= '<%= classified_name %>'
 
 load File.expand_path('lib/<%= dasherized_name %>/engine.rb', __dir__)

GitHub sha: a404cab5