hw/mem/pc-dimm: Print slot number on error at pc_dimm_pre_plug()

The error report in pc_dimm_pre_plug() now has the slot
number printed.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20200310180510.19489-2-wainersm@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/mem/pc-dimm.c

@@ -44,8 +44,8 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
                                    &error_abort);
     if ((slot < 0 || slot >= machine->ram_slots) &&
          slot != PC_DIMM_UNASSIGNED_SLOT) {
-        error_setg(&local_err, "invalid slot number, valid range is [0-%"
-                   PRIu64 "]", machine->ram_slots - 1);
+        error_setg(&local_err, "invalid slot number %d, valid range is [0-%"
+                   PRIu64 "]", slot, machine->ram_slots - 1);
         goto out;
     }