//usage: "[-d DELAY] [-n] [-f]" IF_FEATURE_WTMP(" [-w]")
//usage:#define halt_full_usage "\n\n"
//usage: "Halt the system\n"
-//usage: "\nOptions:"
//usage: "\n -d SEC Delay interval"
//usage: "\n -n Do not sync"
//usage: "\n -f Force (don't go through init)"
//usage: "[-d DELAY] [-n] [-f]"
//usage:#define poweroff_full_usage "\n\n"
//usage: "Halt and shut off power\n"
-//usage: "\nOptions:"
//usage: "\n -d SEC Delay interval"
//usage: "\n -n Do not sync"
//usage: "\n -f Force (don't go through init)"
//usage: "[-d DELAY] [-n] [-f]"
//usage:#define reboot_full_usage "\n\n"
//usage: "Reboot the system\n"
-//usage: "\nOptions:"
//usage: "\n -d SEC Delay interval"
//usage: "\n -n Do not sync"
//usage: "\n -f Force (don't go through init)"