* lib/securerandom.rb: [DOC] SecureRandom.hex length argument
  [Fixes GH-394] Patch by @avdi https://github.com/ruby/ruby/pull/394


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42991 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add author from r42990


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42992 b2dd03c8-39d4-4d8f-98ff-823fe69b080e