Fix fd leak in blame server
Fix fd leak in blame server

Due to poor variable naming old clients from the same IP address were
not getting removed as designed.

This also cleans up the blame server code a bit, which has been
untouched since nogotofail was a prototype and enables pruning of old
clients.

joshcooper/nogotofail,google/nogotofail,google/nogotofail,joshcooper/nogotofail