* ext/openssl/ossl_engine.c: [DOC] Documentation for OpenSSL::Engine
  This patch is based off work by @vbatts in GH-436 completing the
  documentation for this class and its methods.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43742 b2dd03c8-39d4-4d8f-98ff-823fe69b080e