[9.16] Fix dns_kasp_attach / dns_kasp_detach usage - Fix backport error
In the backport MR !7567 (merged), not all the RETERR's in named_zone_configure where converted to CHECK's.
Edited by Matthijs Mekking
In the backport MR !7567 (merged), not all the RETERR's in named_zone_configure where converted to CHECK's.