O_WRONLY          349 daemons/pacemakerd/pacemakerd.c         pcmk__open_devnull(O_WRONLY);   // stdout (fd 1)
O_WRONLY          350 daemons/pacemakerd/pacemakerd.c         pcmk__open_devnull(O_WRONLY);   // stderr (fd 2)
O_WRONLY          232 lib/common/pid.c     fd = open(filename, O_CREAT | O_WRONLY | O_EXCL, 0644);
O_WRONLY          504 lib/common/utils.c     pcmk__open_devnull(O_WRONLY);   // stdout (fd 1)
O_WRONLY          507 lib/common/utils.c     pcmk__open_devnull(O_WRONLY);   // stderr (fd 2)