Allow a public port to be locked by 2 different lock sequences
Allow a public port to be locked by 2 different lock sequences

Renamed port-knocking gates so that they allow a public port to be
locked by two different sequences.

I.e., this wasn't allowed before:

port_knock_forward 5000 1000,1002 30 192.168.33.100:80
port_knock_forward 5000 2000,2002 30 192.168.33.100:80

because each one would have tried to generate gates called

gate_tcp_5000_1
gate_tcp_5000_2
...

but is now allowed because each would generate differently names gates:

gate_tcp_5000_abc_1
gate_tcp_5000_abc_2

gate_tcp_5000_def_1
gate_tcp_5000_def_2

Signed-off-by: kmously <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@fuzzbuzz.org>

kmously/glars