i used this script, a little clunky but it got the job done
```bash
for file in `find . -type f -print | grep '\.go'`; do
sed '1,/^\/\/ limitations under the License.$/d' $file > $file.tmp;
result=`cat $file.tmp`
if [[ result != "" ]]; then
gofmt $file.tmp &> /dev/null;
if [[ $? == 0 ]]; then
mv $file.tmp $file && gofmt -w $file;
else
rm $file.tmp;
fi
else
rm $file.tmp;
fi
done
```
also fix a *bunch* of tests that weren't closing the clusters they
created. Cleaned up one test to use t.Run instead of just checking
everything in a loop
This commit adds support for advertise address by using a new config
option `advertise`, or by defaulting its value to that
specified in `bind`.
Also adds support for listening on 0.0.0.0 by trying to determine
the preferred outbound IP to use for the advertise address.
