cppcheck 2.0 reports false positives about uninitialized variables in a
lot of places throughout BIND source code, e.g.:

    bin/dnssec/dnssec-cds.c:283:6: error: Uninitialized variable: length [uninitvar]
     if (isc_buffer_availablelength(&buf) <= len) {
         ^

Apparently cppcheck 2.0 has issues with processing (&var)->field syntax,
which is what the macros from lib/isc/include/isc/buffer.h are evaluated
to.  This issue was reported upstream [1] and will hopefully be
addressed in a future cppcheck release.

In the meantime, to avoid modifying BIND source code in multiple places
just because of a static checker false positive, work around the issue
by adding intermediate variables to buffer macro definitions using a sed
invocation in the cppcheck job script.

[1] https://sourceforge.net/p/cppcheck/discussion/general/thread/122153e3c1/