update ActionMailer documentation [ci skip]

actionmailer/lib/action_mailer/collector.rb

@@ -2,7 +2,7 @@ require 'abstract_controller/collector'
 require 'active_support/core_ext/hash/reverse_merge'
 require 'active_support/core_ext/array/extract_options'
 
-module ActionMailer #:nodoc:
+module ActionMailer
   class Collector
     include AbstractController::Collector
     attr_reader :responses

actionmailer/lib/action_mailer/delivery_methods.rb

@@ -1,8 +1,8 @@
 require 'tmpdir'
 
 module ActionMailer
-  # This module handles everything related to mail delivery, from registering new
-  # delivery methods to configuring the mail object to be sent.
+  # This module handles everything related to mail delivery, from registering
+  # new delivery methods to configuring the mail object to be sent.
   module DeliveryMethods
     extend ActiveSupport::Concern
 
@@ -42,22 +42,19 @@ module ActionMailer
       # Provides a list of emails that have been delivered by Mail::TestMailer
       delegate :deliveries, :deliveries=, :to => Mail::TestMailer
 
-      # Adds a new delivery method through the given class using the given symbol
-      # as alias and the default options supplied:
-      #
-      # Example:
+      # Adds a new delivery method through the given class using the given
+      # symbol as alias and the default options supplied.
       #
       #   add_delivery_method :sendmail, Mail::Sendmail,
-      #     :location   => '/usr/sbin/sendmail',
-      #     :arguments  => '-i -t'
-      #
+      #     location:  '/usr/sbin/sendmail',
+      #     arguments: '-i -t'
       def add_delivery_method(symbol, klass, default_options={})
         class_attribute(:"#{symbol}_settings") unless respond_to?(:"#{symbol}_settings")
         send(:"#{symbol}_settings=", default_options)
         self.delivery_methods = delivery_methods.merge(symbol.to_sym => klass).freeze
       end
 
-      def wrap_delivery_behavior(mail, method=nil, options=nil) #:nodoc:
+      def wrap_delivery_behavior(mail, method=nil, options=nil) # :nodoc:
         method ||= self.delivery_method
         mail.delivery_handler = self
 
@@ -79,7 +76,7 @@ module ActionMailer
       end
     end
 
-    def wrap_delivery_behavior!(*args) #:nodoc:
+    def wrap_delivery_behavior!(*args) # :nodoc:
       self.class.wrap_delivery_behavior(message, *args)
     end
   end

actionmailer/lib/action_mailer/mail_helper.rb

@@ -1,6 +1,7 @@
 module ActionMailer
   module MailHelper
-    # Take the text and format it, indented two spaces for each line, and wrapped at 72 columns.
+    # Take the text and format it, indented two spaces for each line, and
+    # wrapped at 72 columns.
     def block_format(text)
       formatted = text.split(/\n\r?\n/).collect { |paragraph|
         format_paragraph(paragraph)
@@ -30,9 +31,7 @@ module ActionMailer
 
     # Returns +text+ wrapped at +len+ columns and indented +indent+ spaces.
     #
-    # === Examples
-    #
-    #   my_text = "Here is a sample text with more than 40 characters"
+    #   my_text = 'Here is a sample text with more than 40 characters'
     #
     #   format_paragraph(my_text, 25, 4)
     #   # => "    Here is a sample text with\n    more than 40 characters"

actionmailer/lib/action_mailer/railtie.rb

@@ -3,7 +3,7 @@ require "rails"
 require "abstract_controller/railties/routes_helpers"
 
 module ActionMailer
-  class Railtie < Rails::Railtie
+  class Railtie < Rails::Railtie # :nodoc:
     config.action_mailer = ActiveSupport::OrderedOptions.new
     config.eager_load_namespaces << ActionMailer
 

actionmailer/lib/action_mailer/test_helper.rb

@@ -10,7 +10,8 @@ module ActionMailer
     #     assert_emails 2
     #   end
     #
-    # If a block is passed, that block should cause the specified number of emails to be sent.
+    # If a block is passed, that block should cause the specified number of
+    # emails to be sent.
     #
     #   def test_emails_again
     #     assert_emails 1 do