file.c: same timespec
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
file.c: same timespec
assume time objects are static.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e