When adding a bnx2x interface the following error is raised
```
Traceback (most recent call last):
File "/usr/libexec/vyos/conf_mode/interfaces_ethernet.py", line 385, in <module>
verify(c)
File "/usr/libexec/vyos/conf_mode/interfaces_ethernet.py", line 273, in verify
verify_ethernet(ethernet)
File "/usr/libexec/vyos/conf_mode/interfaces_ethernet.py", line 309, in verify_ethernet
ethtool = Ethtool(ifname)
^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/vyos/ethtool.py", line 153, in __init__
self._eee_enabled = bool('enabled' in out.splitlines()[2])
```
```
ethtool --show-eee eth0
EEE Settings for eth0:
EEE status: not supported
```
At first I thought the bug was an out-of-bounds access, which it is in the case for bnx2x but the real bug is that the shim is reading the EEE status from the wrong line number.