Switch slurm 'reason' message to remove the label error

Author: bbimber

cluster/src/org/labkey/cluster/pipeline/SlurmExecutionEngine.java

@@ -190,7 +190,7 @@ protected Set<String> updateStatusForAllJobs() throws PipelineJobException
                                             status = new Pair<>("ERROR", null);
                                         }
 
-                                        status.second = "ERROR: " + reason;
+                                        status.second = "Reason: " + reason;
                                     }
                                 }