[InterNetNews/inn] 33d880: Update rra-c-util with upstream version

[Julien ÉLIE]

  Branch: refs/heads/main
  Home:   https://github.com/InterNetNews/inn
  Commit: 33d8809cdafd0d189973c183ab6f9d946604dbe3
      https://github.com/InterNetNews/inn/commit/33d8809cdafd0d189973c183ab6f9d946604dbe3
  Author: Julien ÉLIE <Julien-Elie at users.noreply.github.com>
  Date:   2023-01-21 (Sat, 21 Jan 2023)

  Changed paths:
    M tests/tap/process.c

  Log Message:
  -----------
  Update rra-c-util with upstream version

The argv argument shouldn't be NULL, but add an explicit check
since cppcheck wants one.