So we don't remove kernel modules installed by user.

When we find out we are on a development box, include even the logs of
the user packages form updater.

The pclose also waits for the process to terminate and cleans up the
zombie. The original caused hunted systems with thousands of zombies.

So don't try to revive it if it is not installed.

This util is moved from rtool repository.

Include 3-clause BSD licence headers to the tiny utilities.

Various small bugs

So we won't get unrelated logs from random people

To avoid sending duplicate logs.

The random number could have leading 0, which meant octal, but then
there could be 8 or 9, which would confuse the follow-up arithmetics.

Fixes #2769.