-watch Prints a line each time the screensaver changes state: when\n\
the screen blanks, locks, unblanks, or when the running hack\n\
is changed. This option never returns; it is intended for\n\
-watch Prints a line each time the screensaver changes state: when\n\
the screen blanks, locks, unblanks, or when the running hack\n\
is changed. This option never returns; it is intended for\n\