Client Libv error logging

[jmwample]

[REG] 2022/10/24 16:31:27.644484 Failed to create registration from v4 C2S: failed phantom select: gen 1159 libv 0 v6 false err: let's rewrite the phantom address selector
[REG] 2022/10/24 16:31:27.644503 Encountered err when creating Reg: failed phantom select: gen 1159 libv 0 v6 false err: let's rewrite the phantom address selector
[REG] 2022/10/24 16:31:31.526121 Failed to create registration from v4 C2S: failed phantom select: gen 1159 libv 0 v6 false err: let's rewrite the phantom address selector
[REG] 2022/10/24 16:31:31.526141 Encountered err when creating Reg: failed phantom select: gen 1159 libv 0 v6 false err: let's rewrite the phantom address selector

We should reduce the logging from legacy phantom selection errors for older clients (lib version 0) - the cause of this error is clear and already fixed. Clients need to update to get the fix.

Two lines per error is too many. Might even want to go to 0 with a count or something.