* lib/{rake,rdoc,rss}/*, test/rexml/test_listener.rb: [DOC] Fix typos

by @dvsuresh [Fixes GH-486] https://github.com/ruby/ruby/pull/486


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44346 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rake/linked_list.rb

@@ -80,7 +80,7 @@ module Rake
     #
     # When inheriting from the LinkedList class, you should implement
     # a type specific Empty class as well. Make sure you set the class
-    # instance variable @parent to the assocated list class (this
+    # instance variable @parent to the associated list class (this
     # allows conj, cons and make to work polymorphically).
     class EmptyLinkedList < LinkedList
       @parent = LinkedList

lib/rdoc/rd/block_parser.rb

@@ -144,9 +144,9 @@ def next_token # :nodoc:
         # call filter, part_out is output(Part object)
         part_out = @tree.filter[@in_part].call(part)
 
-        if @tree.filter[@in_part].mode == :rd # if output is RD formated
+        if @tree.filter[@in_part].mode == :rd # if output is RD formatted
           subtree = parse_subtree(part_out.to_a)
-        else # if output is target formated
+        else # if output is target formatted
           basename = TMPFILE.join('.')
           TMPFILE[-1] += 1
           tmpfile = open(@tree.tmp_dir + "/" + basename + ".#{@in_part}", "w")

lib/rss/rss.rb

@@ -105,7 +105,7 @@ module RSS
   end
 
   # Some tags must only exist a specific number of times in a given RSS feed.
-  # If a feed has too many occurances of one of these tags, a TooMuchTagError
+  # If a feed has too many occurrences of one of these tags, a TooMuchTagError
   # will be raised.
   class TooMuchTagError < InvalidRSSError
     attr_reader :tag, :parent

test/rexml/test_listener.rb

@@ -63,7 +63,7 @@ class BaseTester < Test::Unit::TestCase
       @listener.parse( t7 ).unpack("C*").inspect, "CR" )
   end
 
-  # The accent bug, and the code that exibits the bug, was contributed by
+  # The accent bug, and the code that exhibits the bug, was contributed by
   # Guilhem Vellut
   class AccentListener
     def tag_start(name,attributes)