[Dnsmasq-discuss] Clarify/Improve DNSSEC related SIGHUP handling

[Kevin Darbyshire-Bryant]

Hi Simon,

Please could you consider the attached patch.  It solves a problem that 
using dnssec-timestamp also effectively enabled dnssec-no-timecheck. 
The result of which is that an unfortunately timed SIGHUP could 
accidentally enable dnssec timestamp checking.  In combination with 
dnssec-check-unsigned that could prove 'challenging' :-)

The patch matches the behaviour is as documented in the manpage.

kind regards,

Kevin
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