/* Sleep until the time (call it WAKE_UP_TIME) specified as
SECONDS seconds after the time this function is called.
SECONDS must be non-negative. If SECONDS is so large that
- it is not representable as a `struct timespec', then use
+ it is not representable as a 'struct timespec', then use
the maximum value for that interval. Return -1 on failure
(setting errno), 0 on success. */