Turning off access_logs for Load Balancer TCP port checks

[Zev Blut]

Hello,

We have load balancers that are doing port checks on our NGINX servers.
Each of these checks creates an entry in our log file like this:

10.0.0.58 - - [22/Feb/2010:18:50:21 +0900] "-" 400 0 "-" "-" 0.000 "-" 
"-" "-" [-] - - - [-] [-]

Does anyone have an idea of how I can stop logging these requests?
I have tried

location / {
    if ($remote_addr ~* 10\.0\.0.\.i.+) {
       access_log off;
    }
}

But this does not work.  I have also tried putting the if and access_log 
check in the http directive.  But access_log commands are not allowed 
there.  So we might want to update the context docs here.
http://wiki.nginx.org/NginxHttpLogModule
Also, I am using Nginx 0.7.65

Thanks,
Zev