Patch #29: Provides an /etc/sysconfig/slurm for Cray systems.

             We have installed the same file this morning on all
             our systems (including a non-Cray cluster which also
             is SuSe based). I have verified that the limits get
             picked up by looking at /proc/$(pidof slurmd)/limits.

select/cray: override ulimits on SuSe based system

This provides a sample /etc/sysconfig/slurm file to override ulimits on Suse
systems such as Cray.

Since slurm respects limits configured by the system administrator, and since
Cray/SuSe systems (in contrast to Debian-based systems) do not automatically
exempt processes owned by the super-user from pam_limits configured in
/etc/security/limits.conf, it can (and did) happen on Cray systems that such
limits cause premature and counter-intuitive interaction with slurmd frontend
nodes.

The provided file overrides limits, using sensible defaults which have
been inspired by the defaults set for processes owned by user root