Review 20327

C. Thomas Tyler
A few configurable tweaks:
* Setting server=4 logging as the default.
* Setting net.backlog=2048, per Support.
* Setting net.tcpsize=0 to engage 'auto-self-tuning' magic.
#2: Change 20332 committed into //guest/perforce_software/sdp/dev/Server/setup 2 0 0
Tip: Use n and p to cycle through the changes.