* lib/fileutils.rb (FileUtils#chown, FileUtils#chown_R): If user
  and group are both nil, print ":".

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41851 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/fileutils/fileasserts.rb
  (Test::Unit::FileAssertions#assert_not_symlink): Add a missing
  optional argument "message".

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41852 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* lib/fileutils.rb (FileUtils#mode_to_s): Define mode_to_s() also
  as singleton method, or FileUtils.chmod fails in verbose mode.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41853 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* object.c: Fix rdoc for Kernel#<=>. [Fix GH-352]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41854 b2dd03c8-39d4-4d8f-98ff-823fe69b080e