test: cleanup/update test-dgram-empty-packet.js
Checklist
-
make -j8 test
(UNIX), orvcbuild test nosign
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
Description of change
- Changed some
var
toconst
and 'let' - Changed
==
toincludes
for clarity.