Log Message:
Update net/ldns to version 1.8.3.

Pkgsrc changes:
 * Only checksum changes.

Upstream changes:
1.8.3   2022-08-15
        * bugfix #183: Assertion failure with OPT record without rdata.
          This caused packet creation with only a DO bit (for DNSSEC OK)
          to crash. Thanks Anand Buddhdev and others for reporting this
          so quickly.
        * Fix for syntax error in pyldns

1.8.2   2022-08-12
        * bugfix #147: Allow for tabs in whitespace before quoted rdata
          fields. Thanks Felipe Gasper
        * bugfix #149: Add some missing [out] annotations to doxygen
          parameters. Thanks aldot.
        * Fix build error on Solaris 10 with inet_ntop redeclaration error.
        * Fix -U flag with ldns-signzone. Thanks Ulrich and Jonathan
        * Enable compile of SVCB and HTTPS support by default.
        * bugfix #179: Free line memory even if zone file parsing fails
          Thanks Claudius Zingerli
        * bugfix #166: Grow buffer when writing chars and fixed size
          strings when converting to presentation format, preventing
          potential assersion errors.
        * bugfix #46: Print network errors when secure tracing.
          Thanks reedjc
        * EDNS0 Option handling and conversion into presentation format.
        * bugfix #145: ldns-verify-zone should not call occluded records
          glue. Thanks Habbie

1.8.1   2021-12-03
        * bugfix #146: ldns-1.7.1 had soname 3.0, so ldns-1.8.x soname
          needs to larger. Thanks Leah Neukirchen & Felipe Gasper
        * Undo PR#123 fix ldns.pc installation when building out-of-source
          Thanks Axel Xu