With the recent changes in commit 80fff9242, it's possible that the
client IP address is customized. Use the same code as in
init_functions.sh to get the this potentially customized IP address to
use for the nbd-client.
[ci:skip-build]: already built successfully in CI
Since the original "Loading..." splash is being shown before the hooks
is being run, we should go back to the "Loading..." splash once we're
done in the hook.
[ci:skip-build]: already built successfully in CI
