1 files changed, 7 insertions, 5 deletions
diff --git a/actionpack/lib/action_controller/metal/mime_responds.rb b/actionpack/lib/action_controller/metal/mime_responds.rb
index 9a88a01233..54d3be68f0 100644
--- a/actionpack/lib/action_controller/metal/mime_responds.rb
+++ b/actionpack/lib/action_controller/metal/mime_responds.rb
@@ -191,7 +191,7 @@ module ActionController #:nodoc:
     #
     # You can set the variant in a +before_action+:
     #
-    #     request.variant = :tablet if request.user_agent =~ /iPad/
+    #   request.variant = :tablet if request.user_agent =~ /iPad/
     #
     # Respond to variants in the action just like you respond to formats:
     #
@@ -287,7 +287,7 @@ module ActionController #:nodoc:
     # * for other requests - i.e. data formats such as xml, json, csv etc, if
     #   the resource passed to +respond_with+ responds to <code>to_<format></code>,
     #   the method attempts to render the resource in the requested format
-    #   directly, e.g. for an xml request, the response is equivalent to calling 
+    #   directly, e.g. for an xml request, the response is equivalent to calling
     #   <code>render xml: resource</code>.
     #
     # === Nested resources
@@ -348,8 +348,10 @@ module ActionController #:nodoc:
     # 2. <tt>:action</tt> - overwrites the default render action used after an
     #    unsuccessful html +post+ request.
     def respond_with(*resources, &block)
-      raise "In order to use respond_with, first you need to declare the formats your " \
-            "controller responds to in the class level" if self.class.mimes_for_respond_to.empty?
+      if self.class.mimes_for_respond_to.empty?
+        raise "In order to use respond_with, first you need to declare the " \
+          "formats your controller responds to in the class level."
+      end
 
       if collector = retrieve_collector_from_mimes(&block)
         options = resources.size == 1 ? {} : resources.extract_options!
@@ -457,7 +459,7 @@ module ActionController #:nodoc:
         @format = request.negotiate_mime(@responses.keys)
       end
 
-      class VariantFilter
+      class VariantFilter #:nodoc:
         def initialize(variant)
           @variant = variant
         end