Fixes release publishing.

```bash
list=$(git tag | grep '^v' | sort -rV)
for v in $list ; do
  ts=$(git rev-list -n 1 --pretty --date=format:'%Y-%m-%d' $v | awk '$1 == "Date:" {print $2}')
  echo "## $v / $ts"
done
```

Signed-off-by: Ben Kochie <superq@gmail.com>