Silent Sprockets logger when config.assets.logger is set to false

actionpack/lib/sprockets/railtie.rb

@@ -21,9 +21,12 @@ module Sprockets
       require 'sprockets'
 
       app.assets = Sprockets::Environment.new(app.root.to_s) do |env|
-        env.logger  = config.assets.logger || ::Rails.logger
         env.version = ::Rails.env + "-#{config.assets.version}"
 
+        if config.assets.logger != false
+          env.logger  = config.assets.logger || ::Rails.logger
+        end
+
         if config.assets.cache_store != false
           env.cache = ActiveSupport::Cache.lookup_store(config.assets.cache_store) || ::Rails.cache
         end

railties/lib/rails/application/configuration.rb

@@ -57,6 +57,7 @@ module Rails
         @assets.js_compressor            = nil
         @assets.css_compressor           = nil
         @assets.initialize_on_precompile = true
+        @assets.logger                   = nil
       end
 
       def compiled_asset_path