BackupController - Make sure we have a connection to the DBD first thing
to avoid it thinking we don't have a cluster name.
Avoid same name in 2 different header files.  run_backup is defined
in slurmctld.h which is included by slurm_accounting_storage.h which is
included by slurmdbd.c which would cause confusion at the very least.
BackupController - Make sure we have a connection to the DBD first thing
to avoid it thinking we don't have a cluster name.
Merge remote-tracking branch 'origin/slurm-2.6'