* lib/ipaddr.rb (IPAddr#in6_addr): Fix a typo with the closing
parenthesis.
* lib/ipaddr.rb (IPAddr#in6_addr): Fix the parser so that it can
recognize IPv6 addresses with only one edge 16-bit piece
compressed, like [::2:3:4:5:6:7:8] or [1:2:3:4:5:6:7::].
[Bug #7477]
merge revision(s) 39298:39300:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39423 b2dd03c8-39d4-4d8f-98ff-823fe69b080e