Avoids confusion with the %u header of USER.

Bug 4948.

Bug 4411

While restarting slurmctld with -R flag, features were emptied.
This patch just does nothing when recover=2 (-R) which means active and
available features are preserved from the state files. Needed for
backup slurmctld controller.

Bug 4927

global variables for sizes instead of calculating the same size over
and over again.

Bug 4882

When setting environment variables in jobs we were tracking other job's
indexes and information, while the scope of the environment is totally
different for each job. The static variables have been moved to non static.

This fixes CUDA_VISIBLE_DEVICES indexing while running different jobs on
the same node.

Bug 4851

If block_map_size is zero (as seen on FreeBSD when not using HWLOC),
xmalloc(0) will return NULL. Writing to str[0] then is invalid.

Bug 4845.

Commit 943c4a13 introduced _register_oom_notifications()
which relies on eventfd() to subscribe to the memory.oom_control file.

As eventfd is unavailable on FreeBSD, disable this functionality
until some alternative implementation can be created.

Bug 4845.

Copy this definition from src/common/gres.c, along
with the necessary includes. (Note that these includes
cannot be alphabetized as is done elsewhere.)

Bug 4845.

Bug 4971

bug 4932

-X doesn't show cumulative statistics for each job but statistics relevant to
the job allocation itself.

Bug 4967

It fixes a scontrol segfault when updating a reservation with empty users or
accounts and the parameters were specified more than once.

Bug 4945

Bug 4778

Bug 4949

Added missing fields in RPC for packing and unpacking txn and usage
when using RPC calls.

Bug 4933

No functionality change, added block in slurmdb_[pack|unpack]_archive_cond()

Coverity CID 182985

Coverity CID 182979

Coverity CID 182981

Coverity CID 182983

Coverity CID 182982

Coverity CID 182980

Coverity CID 182986

Coverity CID 44750

Needed after commit 2f50e2e1 for tcgetattr()/tcsetattr().

Bug 4845.