libwww-perl/libwww-perl — pull request #58 by jfesler (2014-07-22 21:38:58+00:00)
Title: When the hostname is an IPv6 literal, encapsulate it

with [brackets] before calling Net::HTTP [rt.cpan.org #29468]

See also https://github.com/libwww-perl/net-http/pull/10 to complete IPv6 support
for LWP's HTTP/HTTPS modes.