Comment # 5 on bug 102566 from Chris Wilson

commit 62616c672a623b635141473133674321a4acbdc5 (upstream/master,
origin/master, origin/HEAD)
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Oct 17 11:19:38 2017 +0100

    igt/pm_rc6_residency: Allow some leeway on the upper %% bound

    As we use rounding when converting from hw clocks to time, we may report
    a residency greater than wallclock (by a small margin), so allow us to
    overshoot by 5% (just due to our inaccuracy).