Accept max_rpc_count parameter

SchedulerParameters now accepts keyword of "max_rpc_count" in
  addition to the documented "max_rpc_cnt"

src/plugins/sched/backfill/backfill.c

@@ -639,6 +639,9 @@ static void _load_config(void)
 
 	if (sched_params && (tmp_ptr=strstr(sched_params, "max_rpc_cnt=")))
 		defer_rpc_cnt = atoi(tmp_ptr + 12);
+	else if (sched_params &&
+		 (tmp_ptr=strstr(sched_params, "max_rpc_count=")))
+		defer_rpc_cnt = atoi(tmp_ptr + 14);
 	if (defer_rpc_cnt < 0) {
 		error("Invalid SchedulerParameters max_rpc_cnt: %d",
 		      defer_rpc_cnt);

src/slurmctld/job_scheduler.c

@@ -1109,6 +1109,9 @@ static int _schedule(uint32_t job_limit)
 		if (sched_params &&
 		    (tmp_ptr=strstr(sched_params, "max_rpc_cnt=")))
 			defer_rpc_cnt = atoi(tmp_ptr + 12);
+		else if (sched_params &&
+			 (tmp_ptr=strstr(sched_params, "max_rpc_count=")))
+			defer_rpc_cnt = atoi(tmp_ptr + 14);
 		if (defer_rpc_cnt < 0) {
 			error("Invalid max_rpc_cnt: %d", defer_rpc_cnt);
 			defer_rpc_cnt = 0;