* lib/rdoc:  Update to RDoc 4.2.0.
* test/rdoc:  ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove trailing spaces.

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* properties.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
io.c: Typo close -> closes.

Patch by @cirosantilli [Fixes GH-757]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48735 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
known_classes.rb: remove DL

* lib/rdoc/known_classes.rb: reverted regression changes of rdoc
  known class.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48736 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/basicsocket.c, ext/socket/sockssocket.c:
  remove code for $SAFE=4.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/net/imap/test_imap.rb (ImapTest#imaps_test): forced error on SSL sockets
  causes Errno::ECONNRESET or Errno::ECONNABORTED instead of Errno::EPIPE on
  Windows.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix a typo [ci skip]

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