This is the first of a series of patches I have got from Thomas Hood
that modify the apm code mainly for better self documentation.

This one does:

Variable "waiting_for_resume" is renamed 'ignore_sys_suspend'.
The reason for the change is that this flag variable is
employed in a manner analogous to that of other flag variables
named 'ignore ...'.  When the flag is set, the driver needs to
ignore further system suspends.  The driver does not "wait"
in the usual sense of that word.  The only sense in which the
driver waits is the sense in which it needs to continue to
ignore system suspends until certain events occur.  One such
event is a resume.  However, another such event is the vetoing
of the suspend request by a driver.  So it would be more
accurate to call the flag 'waiting_for_resume_or_suspend_reject'
or something like that.  But for the reason mentioned first,
an even better name is 'ignore_sys_suspend'.