Ruby » Ruby master

merge revision(s) 41781: [Backport #8604]

    * lib/fileutils.rb (FileUtils#symbolic_modes_to_i): Fix the wrong
      character class [+-=], which happened to match all desired
      characters but also match undesired characters.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@41811 b2dd03c8-39d4-4d8f-98ff-823fe69b080e