traceroute: avoid collecting target local address if !VERBOSE

function                                             old     new   delta
common_traceroute_main                              1542    1537      -5
traceroute_init                                     1151    1101     -50
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(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-55)             Total: -55 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1 file changed