MFH: r419646

• add patch to modify apr1 poll() emulation to match behavior expected by serf
  
  serf depends on the poll emulation in apr returning a POLLERR event if a non-blocking connect() attempt fails in order to trigger an IPv6 -> IPv4 fallback, or a fallback to another address for a multi-homed host. On FreeBSD, the poll emulation is done using kqueue, and the result returned by the poll() emulation is POLLIN + POLLHUP.

• upstream apache PR: https://bz.apache.org/bugzilla/show_bug.cgi?id=59914

PR: 211430
Submitted by: Don Lewis (truckman@)

Approved by: ports-secteam (junovitch)