device not "any" results in index out of bounds exception

[ntfrnzn]

On line 82 of sniffer.go
if sniffer.config.Devices[0] == "any" || sniffer.config.Devices[1] == "lo" {

In the current release, multiple devices are not supported, so setting the device configuration to "eth0" triggers an exception on this line. "devices" is always length 1.

I see there are comments elsewhere that suggest that the devices array might be populated in the future, so this might be fixed in a couple different ways along with other changes. Obviously the simple one-line fix is to check the length here.

[tsg]

The intention was to check if the sniffing device is "any" or "lo" and set the maximum MTU for them. The Devices[1] thing is a typo corrected by the commit above. Thanks!