Merge pull request #39933 from exterm/engines-are-not-applications

Correct engine generator docs

railties/lib/rails/generators/base.rb

@@ -19,7 +19,7 @@ class Base < Thor::Group
       include Rails::Generators::Actions
 
       class_option :skip_namespace, type: :boolean, default: false,
-                                    desc: "Skip namespace (affects only isolated applications)"
+                                    desc: "Skip namespace (affects only isolated engines)"
       class_option :skip_collision_check, type: :boolean, default: false,
                                           desc: "Skip collision check"
 

railties/lib/rails/generators/rails/plugin/plugin_generator.rb

@@ -185,7 +185,7 @@ class PluginGenerator < AppBase # :nodoc:
                                   desc: "Generate a rails engine with bundled Rails application for testing"
 
       class_option :mountable,    type: :boolean, default: false,
-                                  desc: "Generate mountable isolated application"
+                                  desc: "Generate mountable isolated engine"
 
       class_option :skip_gemspec, type: :boolean, default: false,
                                   desc: "Skip gemspec file"