Fix system_upgrade prompt output

Signed-off-by: Ethan Dye <mrtops03@gmail.com>

functions/system.bash

@@ -21,16 +21,16 @@ system_upgrade() {
   local upgradeText="ATTENTION !\\n\\nYou chose upgrade ALL of your software packages in one go.\\nNote this will include upgrading openHAB itself to its latest version which might be a major upgrade and can break your working system.\\n\\n Are you sure this is what you want?\\n"
   local OH4upgradeText="ATTENTION !\\n\\nYou chose to upgrade ALL of your software packages\\nThis is not possible when you are not on the current major version of openHAB, OH4.\\n\\nIn order to upgrade to openHAB 4 first, use the next menu option."
 
+  echo "$(timestamp) [openHABian] Updating repositories and upgrading installed packages..."
   if [[ -n "$INTERACTIVE" ]]; then
     if openhab4_is_installed; then
-      if (whiptail --title "Upgrade ALL software" --yes-button "Continue" --no-button "Cancel" --yesno "$upgradeText" 12 80); then echo "OK"; else echo "CANCELED"; return 1; fi
+      if ! (whiptail --title "Upgrade ALL software" --yes-button "Continue" --no-button "Cancel" --yesno "$upgradeText" 12 80); then echo "CANCELED"; return 1; fi
     else
       whiptail --title "Old openHAB version" --msgbox "$OH4upgradeText" 7 80
       return 1
     fi
   fi
 
-  echo "$(timestamp) [openHABian] Updating repositories and upgrading installed packages..."
   export DEBIAN_FRONTEND=noninteractive
   if ! apt-get clean --yes -o DPkg::Lock::Timeout="$APTTIMEOUT"; then echo "FAILED"; return 1; fi
   # bad packages may require interactive input despite of this setting so do not mask output (no cond_redirect)