lib/open-uri.rb: Allow http to https redirection.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
lib/open-uri.rb: Allow http to https redirection.
Note that https to http is still forbidden.
[ruby-core:20485] [Feature #859] by Roman Shterenzon.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e