* ext/socket/unixsocket.c: [DOC] Fix example to render in HTML
  properly, with a patch by @eval [Fixes GH-733]
  https://github.com/ruby/ruby/pull/733


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47871 b2dd03c8-39d4-4d8f-98ff-823fe69b080e