change default for $label and add test for empty string
change default for $label and add test for empty string
yodaaut/raspbian-ua-netinst,racing-tech/rrp-raspi-installer,beylsp/rpi-installer,FooDeas/raspberrypi-ua-netinst,beylsp/rpi-installer,firepick/FireHawk,daytonpid/FireHawk,racing-tech/rrp-raspi-installer