9.16.3 make tests on centos 8

[Mark Andrews]

Opened ticket.  That system test appears to be very linux capabilities specific when run as root.

> On 1 Jun 2020, at 06:36, Carl Byington via bind-users <bind-users at lists.isc.org> wrote:
> 
> I:runtime:verifying that named switches UID (14)
> I:runtime:failed

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Mark Andrews, ISC
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