Fixed backward incompatibility for engines.

- Many engines rely on being able to join directories to the Rails root:

    Rails.root.join('somedir')

- This was now impossible because Rails.root returned a String:

    NoMethodError: undefined method `join' for "/code/myrailsapp":String

- This was broken in 4001835db00ce44cb75bca33ec02cd76b8ccc790

1 files changed, 1 insertions, 1 deletions

diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb
index 619c76206d..4c7199a2e2 100644
--- a/railties/lib/rails/engine.rb
+++ b/railties/lib/rails/engine.rb
@@ -652,7 +652,7 @@ module Rails
       root = File.exist?("#{root_path}/#{flag}") ? root_path : default
       raise "Could not find root path for #{self}" unless root
 
-      File.realpath root
+      Pathname.new File.realpath root
     end
 
     def default_middleware_stack