Merge branch 'brightness_on_12000xl' into 'master'

epson2: fix lower brightness limit for DS-G20000/12000XL

See merge request sane-project/backends!529

backend/epson2-ops.c

@@ -302,6 +302,9 @@ e2_dev_post_init(struct Epson_Device *dev)
 		dev->need_reset_on_source_change = SANE_TRUE;
 	}
 
+	if (e2_dev_model(dev, "DS-G20000"))
+		dev->cmd->bright_range.min = -3;
+
 	return SANE_STATUS_GOOD;
 }