Change it so that we can resize arrays conveniently. Renaming
similarly to slurm_xcalloc().

This name is something of my own invention - there is no direct libc
equivalent that will resize allocations and ensure the contents are
zero'd out, let alone for arrays, and reallocarray() itself is
already non-standard.

Add an extra bool argument so we can introduce try_xcalloc() while here.

EMUNGE_CRED_REPLAYED is expected, and we should still mark the credential
as verified.

The bug here is that g_slurm_auth_verify was still returning SLURM_SUCCESS,
while the credential internally had verify = false, resulting in
g_slurm_auth_get_*() hitting an assertion failure.

Bug 6676.

This used to be the short form for --account, but was changed to
-A ahead of the Slurm 2.1 release over nine years ago.

Otherwise slurmctld will lazily initialize it later when any
auth plugin calls are made, but this can leave you with an unusable
slurmctld if AuthType is invalid.

Used to select between different authentication plugins.

Identifies which authentication plugin (as identified by the index
rather than the plugin_id) was used to decode this specific
credential. Needed so that code paths responding to this message
can reply with the same authentication type to ensure the message
can be accepted by the remote (which, except for the slurmctld/slurmdbd,
will always be a single plugin type.

Standardize on DEFUNCT_RPC_#### for numbers that are reusable.
Or DBD_DEFUNCT_RPC_#### in slurmdbd_defs.h.

The 19.05 release is the second after 17.11, so we no longer need this.

These were all missing a copy of msg->conn into the response_msg,
which implies they were broken for persistent connections before this.

This also catches a number of locations where flags were not
being propogated across to the response.

Two of the three functions have different names, and even if
translated to the current terms this isn't a typical use.

Plugins do not and should not keep pointers in to buf.

And update all calling locations. Note that this removes a lot
of unnecessary calls to slurm_get_auth_info() which should serve
as a slight performance speedup.

Now unused. This info should only be needed at verification time,
which must happen before any slurm_auth_get_*() calls.

bug 6646

Insure that each MPS server has a single/common percentage of a GPU

Add module to the Makefiles
Add test description to README (used for logging to stderr)
If "date" fails and an error (FAILURE) is logged, then make the test
  have an exit 1
If the test can not run due to configuration then do not log as
  a failure and exit 0

Coverity CID 195594

Coverity CID 195725

Bug 6633.

Coverity CID 195599

Coverity CID 195608

Coverity CID 195595

Coverity CID 195595

Coverity CID 195594

Coverity CID 195603 and 195605

Coverity CID 195610

Coverity CID 195592