Bug#1056980: nc-traditional - update-alternatives

[Tom H]

My systems are usr-merged, but I'm saddened by the appearance of
vindictiveness in the response to this bug report. Independently of
the reporter's system being usr-unmerged, it's technically incorrect
for the alternatives system to use "/bin/{nc,netcat}" and
"/bin/netcat-traditional" rather than "/usr/bin/{nc,netcat}" and
"/usr/bin/netcat-traditional" on a usr-merged system.