Merge branch 'sanei-fix--usb-testing-mode-in-release' into 'master'

sanei_usb: Fix uninitialized device struct in USB testing code

See merge request sane-project/backends!156

sanei/sanei_usb.c

@@ -1138,6 +1138,7 @@ static SANE_Status sanei_usb_testing_init()
       while (el_interface != NULL)
         {
           device_list_type device;
+          memset(&device, 0, sizeof(device));
           device.devname = strdup(testing_xml_path);
 
           // other code shouldn't depend on methon because testing_mode is