Fix a few typos [ci skip]

actionpack/lib/abstract_controller/base.rb

@@ -100,10 +100,10 @@ module AbstractController
 
       # Returns the full controller name, underscored, without the ending Controller.
       #
-      #   class MyApp
+      #   class MyApp::MyPostsController < AbstractController::Base
-      #     MyPostsController < AbstractController::Base
       #     end
       #   end
+      #
       #   MyApp::MyPostsController.controller_path # => "my_app/my_posts"
       #
       # ==== Returns

actionpack/lib/abstract_controller/rendering.rb

@@ -17,7 +17,7 @@ module AbstractController
     extend ActiveSupport::Concern
     include ActionView::ViewPaths
 
-    # Normalize arguments, options and then delegates render_to_body and
+    # Normalizes arguments, options and then delegates render_to_body and
     # sticks the result in <tt>self.response_body</tt>.
     # :api: public
     def render(*args, &block)

actionview/CHANGELOG.md

@@ -1,4 +1,4 @@
-*   Default translations that have a lower precidence than an html safe default,
+*   Default translations that have a lower precedence than a html safe default,
     but are not themselves safe, should not be marked as html_safe.
 
     *Justin Coyne*

activesupport/lib/active_support/core_ext/object/try.rb

@@ -63,7 +63,7 @@ class Object
     try!(*a, &b) if a.empty? || respond_to?(a.first)
   end
 
-  # Same as #try, but will raise a NoMethodError exception if the receiver is
+  # Same as #try, but raises a NoMethodError exception if the receiver is
   # not +nil+ and does not implement the tried method.
   #
   #   "a".try!(:upcase) # => "A"