* ext/socket/socket.c (sock_gethostname): Use NI_MAXHOST to support
  hostnames longer than 64 characters if the system supports it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46935 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ChangeLog: reference GitHub pull request

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46936 b2dd03c8-39d4-4d8f-98ff-823fe69b080e