Added datadir which appeared to be needed on some systems

slurm.spec

@@ -173,6 +173,10 @@ partition management, job management, scheduling and accounting modules.
 %{!?_slurm_sysconfdir: %global _slurm_sysconfdir /etc/slurm}
 %define _sysconfdir %_slurm_sysconfdir
 
+#  Allow override of datadir via _slurm_datadir.
+%{!?_slurm_datadir: %global _slurm_datadir %{_prefix}/share}
+%define _datadir %{_slurm_datadir}
+
 #  Allow override of mandir via _slurm_mandir.
 %{!?_slurm_mandir: %global _slurm_mandir %{_datadir}/man}
 %define _mandir %{_slurm_mandir}