squeue to list multiple reasons for job array

If a pending job array has multiple reasons for being in a pending state,
    then print all reasons in a comma separated list.

Before:
             JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
       97354_[1-4]     debug      tmp    jette PD       0:00      1 (Resources)

After:
             JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
       97354_[1-4]     debug      tmp    jette PD       0:00      1 (Resources,JobHeldUser)