merge revision(s) 54097: [Backport #12069]
* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): document as MT-unsafe [ruby-core:73803] [Bug #12069]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@54282 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 54097: [Backport #12069]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@54282 b2dd03c8-39d4-4d8f-98ff-823fe69b080e