Ruby

socket.rb: protected connect_internal

• ext/socket/lib/socket.rb (Addrinfo#connect_internal): make
  protected for Addrinfo#connect_to, instead of private and send.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62449 b2dd03c8-39d4-4d8f-98ff-823fe69b080e