Synopsis:
   set cpu_saver_after [<minutes>]

Description:
   This triggers CPU Saver mode after <minutes> without a keypress.

See Also:
   set(4) cpu_saver_every

Other Notes:
   When CPU Saver is enabled, the status bar isn't updated and the notify list
   isn't checked. If either this value or set(4) cpu_saver_every is 0,
   CPU Saver mode will not activate.