Currently, because of devices with unset RTC clock, the 100% percentile
for Uptime on [1] is calculated since the Unix epoch which is useless as
far as usage statistics are concerned. Thus, if the Syncthing start time
is set to a past date, assume that the clock is wrong and do not even
try to report the uptime.
[1] https://data.syncthing.net
Signed-off-by: Tomasz Wilczyński <twilczynski@naver.com>
Co-authored-by: Jakob Borg <jakob@kastelo.net>
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