OPNSense/plugins f91efb7dns/rfc2136 Makefile, dns/rfc2136/src/www services_rfc2136.php

dns/rfc2136: translate "if" as conditional

(cherry picked from commit 1cd1d0fb72c4ec5dc79a225045c52ca7078d4e18)
(cherry picked from commit ed58115c9502c8e4ceaa1b25db19d3a860cf40b5)
DeltaFile
+26-26dns/rfc2136/src/www/services_rfc2136.php
+1-0dns/rfc2136/Makefile
+27-262 files

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