* ext/pathname/lib/pathname.rb:  Fix typos and grammar mistakes.  Patch
  by Luke Gruber.  [#5203]
* ext/pty/lib/expect.rb:  ditto
* lib/mathn.rb:  ditto
* lib/net/http.rb:  ditto
* lib/open-uri.rb:  ditto
* lib/ostruct.rb:  ditto
* lib/tempfile.rb:  ditto
* lib/thread.rb:  ditto
* lib/weakref.rb:  ditto
* sample/webrick/httpproxy.rb:  ditto


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@33089 b2dd03c8-39d4-4d8f-98ff-823fe69b080e