This includes only the documentation and parsing. not support for
the underlying resource selection

Needed for switch/nrt plugin enhancements

jobs now.

ran yet though.

Update salloc/sbatch/srun man pages for the --entwork option and
a resource size specification for the bulk_transfer option.

I was doing some checking to find out why the the 2.4 branch and
master branch of schedmd was not allowing held jobs to be modified,
when attempting to do so,  scontrol would return:

slurm_update error: Requested partition configuration not available now

I did some debugging and found that it was caused by code added to the tail end
of job_limits_check() in job_mgr.c. It  had this addition:

        } else if (job_ptr->priority == 0) {   /* user or administrator hold */
                fail_reason = WAIT_HELD;
        }

It is causes all modifications done by scontrol on held jobs, to fail.

I'd like to propose quieting down the job_mgr a tad.  This is a refinement to:
https://github.com/SchedMD/slurm/commit/30a986f4c600291876f4ec3e3949934512f2cba5

These changes reflect findings from the select/serial plugin
development work