* ext/pathname/pathname.c (path_birthtime): New method,
  Pathname#birthtime.
  Proposed by Kazuhiro NISHIYAMA.  [ruby-dev:48232] [Feature #9857]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46602 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Pathname#birthtime added.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e