ignore exception is the address is IPv6
some environments disables IPv6 even if they have IPv6 addresses.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53294 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ignore exception is the address is IPv6
some environments disables IPv6 even if they have IPv6 addresses.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53294 b2dd03c8-39d4-4d8f-98ff-823fe69b080e