mod_report_forward: Fix traceback on error message passed to datetime function If archive:get() returns an error, e.g. because it can't find a message with the given ID, it may return e.g. nil, "item-not-found" or similar where the error condition ends up in reported_message_time, which gets passed to util.datetime, which thus ends up doing math to a string or error object.

---
labels:
- 'Stage-Obsolete'
---

::: {.alert .alert-warning}
As of Prosody 0.12.x, `prosodyctl shell user list HOST` can be used
instead of this module.
:::

This module adds a command to `prosodyctl` for listing users.

``` sh
prosodyctl mod_listusers
```