daemon so that job preemption and gang scheduling can be used with the
    sched/backfill plugin. Added PreemptMode=off|suspend|kill configuration
    parameter to enable/disable the job preemption logic (disabled by default).
 -- If the --partition option is used with the sinfo or squeue command then
    print information about even hidden partitions.
svn  merge -r18053:18120 https://eris.llnl.gov/svn/slurm/branches/srun-2.1.preempt