merge revision(s) 67563:
Support SNI (Reapplying r67488) This fixes connecting using TLS 1.3 to imap.gmail.com [Fix GH-2077] [Feature #15594] From: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67564 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 67563:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67564 b2dd03c8-39d4-4d8f-98ff-823fe69b080e