#97 inetlisteningservers probe parse error with IPv6

[Michael Chisholm]

IPv6 addresses are not parsed correctly by the inetlisteningservers probe. An example:

tcp 0 0 :::22 :::* LISTEN 0 8515 4819/sshd

results in an item with:

<local_address/>
<local_port>::22</local_port>

[Michael Chisholm]

Fixed in [r1795].