O_WRONLY          524 daemons/pacemakerd/pcmkd_subdaemons.c         pcmk__open_devnull(O_WRONLY);   // stdout (fd 1)
O_WRONLY          525 daemons/pacemakerd/pcmkd_subdaemons.c         pcmk__open_devnull(O_WRONLY);   // stderr (fd 2)
O_WRONLY          223 lib/common/pid.c     fd = open(filename, O_CREAT | O_WRONLY | O_EXCL, 0644);
O_WRONLY          324 lib/common/utils.c     pcmk__open_devnull(O_WRONLY);   // stdout (fd 1)
O_WRONLY          327 lib/common/utils.c     pcmk__open_devnull(O_WRONLY);   // stderr (fd 2)