fix typos

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-01-01

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38668 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_tmpdir.rb: remove tmpdir

* test/test_tmpdir.rb (TestTmpdir#test_no_homedir): remove created
  tmpdir.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38669 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* bootstraptest/test_thread.rb: get rid of "invalid nest" error in
  ruby-mode.el.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38670 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* bootstraptest/test_thread.rb: get rid of confusing ruby-mode.el
  indent.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e