I have a bash script running as cron job which has some gcloud commands in it.

eg.

```
gcloud compute firewall-rules update allow-ssh--source-ranges=$(echo "${mylocations[@]}" | tr ' ' ',')

```

I have the crontab entry redirecting stdout to /dev/null, so that I don't get emails every time it runs.

The problem is that gcloud's output goes to stderr, even when there is no error, so I get emails like this:

> 
> TITLE: Cron user@host /home/user/bin/firewall-update.sh >/dev/null
> 
> 
> Updated
> [https://www.googleapis.com/compute/v1/projects/project-name-4234534/global/firewalls/allow-ssh].
> 
> 
> ...
> 
> 
> 

I have tried adding `--verbosity=error`, `critical` and `none`to the gcloud commands, but they have no effect.

So how do I stop gcloud from sending this message to stderr when it completes successfully? Why does it even do that?