could result in reading data too often.

Add jobacct_g_resume_poll() so thing don't fall hopelessly out 
  of sync if a message gets lost or replayed.
Restore logic to close /proc directory on shutdown (removed 
  by Danny is recent update causing file leak).

pull in the process's environment on its own.  (Better default behavior).

Jobacct plugin only looks at the proctrack list inside of a given container id for processes instead of of reading in all the information for every process.

man pages that have more than one function covered.

which will initialize a job_step_create_request_msg_t structure in
preparation for passing it to slurm_step_ctx_create().

It will set the user_id from getuid(), and set the jobid to the ID
found in the environment.

    prevent problems with job checkpoint/restart (based on work by
    Hongjia Cao, NUDT).