object.c: [DOC] fix typos in doc for yield_self

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65377 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

object.c

@@ -570,15 +570,14 @@ rb_obj_size(VALUE self, VALUE args, VALUE obj)
  *     3.next.then {|x| x**x }.to_s             #=> "256"
  *     "my string".yield_self {|s| s.upcase }   #=> "MY STRING"
  *
- *  Good usage for +yield_self+ is values piping in long method
- *  chains:
+ *  Good usage for +yield_self+ is value piping in method chains:
  *
  *     require 'open-uri'
  *     require 'json'
  *
  *     construct_url(arguments).
- *       yield_self { |url| open(url).read }.
- *       yield_self { |response| JSON.parse(response) }
+ *       yield_self {|url| open(url).read }.
+ *       yield_self {|response| JSON.parse(response) }
  *
  *  When called without block, the method returns +Enumerator+,
  *  which can be used, for example, for conditional
@@ -587,7 +586,7 @@ rb_obj_size(VALUE self, VALUE args, VALUE obj)
  *     # meets condition, no-op
  *     1.yield_self.detect(&:odd?)            # => 1
  *     # does not meet condition, drop value
- *     2.yeild_self.detect(&:odd?)            # => nil
+ *     2.yield_self.detect(&:odd?)            # => nil
  *
  */