Minor installer output enhancements

+ Print restart hint after setting IPv4 address on a separate line with [i] prefix to not break text alignment
+ Print final upstream DNS choice as a single printf call and by this fix missing info and linebreak on "Custom" choices.
+ Minor if/then/else code alignment

Signed-off-by: MichaIng <micha@dietpi.com>

automated install/basic-install.sh

@@ -838,7 +838,8 @@ setDHCPCD() {
         # Then use the ip command to immediately set the new address
         ip addr replace dev "${PIHOLE_INTERFACE}" "${IPV4_ADDRESS}"
         # Also give a warning that the user may need to reboot their system
-        printf "  %b Set IP address to %s \\n  You may need to restart after the install is complete\\n" "${TICK}" "${IPV4_ADDRESS%/*}"
+        printf "  %b Set IP address to %s\\n" "${TICK}" "${IPV4_ADDRESS%/*}"
+        printf "  %b You may need to restart after the install is complete\\n" "${INFO}"
     fi
 }
 
@@ -984,8 +985,6 @@ setDNS() {
     # exit if Cancel is selected
     { printf "  %bCancel was selected, exiting installer%b\\n" "${COL_LIGHT_RED}" "${COL_NC}"; exit 1; }
 
-    # Display the selection
-    printf "  %b Using " "${INFO}"
     # Depending on the user's choice, set the GLOBAl variables to the IP of the respective provider
     if [[ "${DNSchoices}" == "Custom" ]]
     then
@@ -1062,7 +1061,6 @@ setDNS() {
             DNSName="$(cut -d';' -f1 <<< "${DNSServer}")"
             if [[ "${DNSchoices}" == "${DNSName}" ]]
             then
-                printf "%s\\n" "${DNSName}"
                 PIHOLE_DNS_1="$(cut -d';' -f2 <<< "${DNSServer}")"
                 PIHOLE_DNS_2="$(cut -d';' -f3 <<< "${DNSServer}")"
                 break
@@ -1071,6 +1069,9 @@ setDNS() {
         # Restore the IFS to what it was
         IFS=${OIFS}
     fi
+
+    # Display final selection
+    printf "  %b Using upstream DNS: %s %s\\n" "${INFO}" "${PIHOLE_DNS_1}" "${PIHOLE_DNS_2}"
 }
 
 # Allow the user to enable/disable logging