Wifi settings description

src/freedombone-utils-wifi

     do
         data=$(tempfile 2>/dev/null)
         trap "rm -f $data" 0 1 2 5 15
+        wifistr=$"\nTo use this system via wifi (eg. USB dongle) enter the details below, otherwise just select Ok:"
+        if [ -f /root/.wifi-only ]; then
+            wifistr=$"\nEnter your wifi login details below."
+        fi
         dialog --backtitle $"Freedombone Configuration" \
                --title $"Wifi Settings ${wifi_ctr}" \
-               --form $"\nTo use this system via wifi (eg. USB dongle) enter the details below, otherwise just select Ok:" 13 65 4 \
+               --form "$wifistr" 13 65 4 \
                $"SSID (can be 'any'):" 1 1 "$WIFI_SSID" 1 24 30 30 \
                $"Type (open/wpa2-psk):" 2 1 "$WIFI_TYPE" 2 24 10 10 \
                $"Passphrase:" 3 1 "$WIFI_PASSPHRASE" 3 24 50 50 \