Ruby

process.c: do not inherit saved fds

• process.c (save_redirect_fd): make saved FDs close-on-exec not
  to be inherited.
• process.c (run_exec_dup2): restore close-on-exec flags too.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51832 b2dd03c8-39d4-4d8f-98ff-823fe69b080e