message: build: Update netbsd_kevent_void.patch
  This change fixes "Hunk succeeded at 307 (offset -1 lines)."
diff: @@ -10,7 +10,7 @@ diff --git a/configure.ac b/configure.ac
  index 1a571291..402f8b86 100644
  --- a/configure.ac
  +++ b/configure.ac
  -@@ -308,6 +308,27 @@ case "${host_os}" in
  +@@ -307,6 +307,27 @@ case "${host_os}" in
  if test "x$libzmq_netbsd_has_atomic" = "xno"; then
  AC_DEFINE(ZMQ_FORCE_MUTEXES, 1, [Force to use mutexes])
  fi
  