Ubuntu Security :: Script Running As A Special Build User Which Performs An Automated Build That Fails With (Too Many Open Files)?

I have an init script running as a special build user which performs an automated build that fails with (Too many open files).I updated /etc/security/limits to allow the special user more open files, but that didn't work - the init script still isn't allowed more open files.Here's a demonstration of the problem;

Code:
$ su - sbsbuild -c "ulimit -n"
Password:

[code]....