WIFI Shield support has some bad uses of strncpy()

[WestfW]

From code inspection:.. These are incorrect calls to strncpy - using the length of the source string rather than the destination buffer...

 libraries/WiFi/extras/wifiHD/src/ard_spi.c - instances of:
    strncpy(keyIdx, (const char*)&params->param, params->paramLen);

hardware/arduino/avr/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/WIFI/HD/wl_api.h - instances of:
        strncpy(net.ssid.ssid, "My AP", strlen("My AP"));