Cannot start supervisor with numprocs > 200

On centOS7 droplets with 512 mb of ram, Supervisor crash and not start.

Here's my program conf.

```
[program:test]
directory=/root/
command=/root/script.sh
process_name=%(process_num)02d
numprocs=210
priority=999
autostart=true
autorestart=true
startsecs=10
startretries=10
stopwaitsecs=10
```

If I set numprocs to equal or less than 200 it's work.
