Fix race condition in authentication credential creation that could corrupt
memory. (NOTE: This race condition has existed since 2003 and would be
exceedingly rare.)

symbols.

This permits a single gres.conf file to be used for a
heterogeneous cluster.

Conflicts:
	src/squeue/print.c
	src/sview/job_info.c

This is needed for job arrays with discontiguous task ID values
(e.g. "123_[1,3,5,...99999]")

Previously job arrays were only listed with their native job ID
(e.g. 123_0 listed as 123, 123_1 as 124, etc). Now lists the job ID
using both format (e.g. "123_1 (124)"). The same format is used
for job step IDs (e.g. "123_1.2 (124.2)").

If the GRES is associated with specific files AND
the GRES count is reset using scontrol AND
the slurmd is restarted either without a gres.conf file or with a count and no specific files AND
the GRES count is then increased using scontrol the GRES bitmap will not match its count

This fixes the root cause of the mismatch between bitmap size and GRES
count and should render the rebuilding of the bitmap unnecessary.
The rebuilding was handled in the following commits
commit ec4df3bf
commit 1712d619

Correction to commit 5a4b9e0c

conflict resolution.