While not POSIX compliant, BSD and Linux platforms have shipped this
function for a long time, and slurmctld/slurmdbd/slurmd have actually
been using the version from libc instead of this local redefinition.

Zero cleanup functions exist within the source, remove all this
dead infrastructure.

bug 3822

Missed sreport in d3ee28fa

Forgot to add the .h changes.
1d20fe77

because it can't get the fed job lock from the origin cluster.

Only storing existing pointers so don't destroy them.

Only realloc and copy if there is something to copy in.

Coverity CID:169529

The sibling should send its job list even it is empty so that the other
sibling can see if any jobs are missing.

Coverity CID:169530, 169531

Bug 3708

Bug 3815

not being able to deal with pn_min_memory being a uint64_t.  Scripts are
urged to change to these new variables avoid issue.  If not set the
variables will be 'nil'.

Bug 3681

In 17.11(or other future version) we should move a lot of this common
code into a new lib.  The reason I didn't put these common changes
into common/xlua.c was because then I would have to link common to
liblua which I really didn't want to do.

In order for scancel -u <user> to be able to cancel jobs by user that
exist only on other clusters in the federation, scancel needs to load
all of them.

Running jobs can happen out of order.

Original list was being free'd before the copy was.

sbatch|srun --test-only
Bug 3740

Bug 3802

Bug 3641

and steps

Bug 3700

Bug 3699

Bug 3698

Bug 3697

Bug 3667

to validate scontrol --local and --sibling options

Bug 3662