`setDNS` whiptail direct, not in array.

Signed-off-by: Dan Schaper <dan.schaper@pi-hole.net>

automated install/basic-install.sh

@@ -429,14 +429,16 @@ valid_ip() {
 }
 
 setDNS() {
-  DNSChooseCmd=(whiptail --separate-output --radiolist "Select Upstream DNS Provider. To use your own, select Custom." ${r} ${c} 6)
+  local DNSSettingsCorrect
+
   DNSChooseOptions=(Google "" on
       OpenDNS "" off
       Level3 "" off
       Norton "" off
       Comodo "" off
       Custom "" off)
-  DNSchoices=$("${DNSChooseCmd[@]}" "${DNSChooseOptions[@]}" 2>&1 >/dev/tty) || \
+  DNSchoices=$(whiptail --separate-output --radiolist "Select Upstream DNS Provider. To use your own, select Custom." ${r} ${c} 6 \
+    "${DNSChooseOptions[@]}" 2>&1 >/dev/tty) || \
     { echo "::: Cancel selected. Exiting"; exit 1; }
   case ${DNSchoices} in
     Google)