* server/mpm/prefork/prefork.c (child_main): If apr_pollset_poll()

  fails with EINTR and die_now has been set (indicating a graceful
  stop/restart), terminate the child quickly rather than re-entering
  poll().


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@613260 13f79535-47bb-0310-9956-ffa450edef68