Updated texts

See https://github.com/rootzoll/raspiblitz/pull/1359#pullrequestreview-451064460

home.admin/00mainMenu.sh

@@ -285,7 +285,7 @@ case $CHOICE in
             ;;
         REBOOT)
 	    clear
-	    confirmation "Reboot" true 9 40
+	    confirmation "Are you sure?" "Reboot" "Cancel" true 7 40
 	    confirmationReboot=$?
 	    if [ $confirmationReboot -eq 0 ]; then
                clear
@@ -296,7 +296,7 @@ case $CHOICE in
             ;;
         OFF)
 	    clear
-	    confirmation "PowerOff" true 9 40
+	    confirmation "Are you sure?" "PowerOff" "Cancel" true 7 40
 	    confirmationShutdown=$?
 	    if [ $confirmationShutdown -eq 0 ]; then
                clear

home.admin/XXconfirmation.sh

@@ -3,20 +3,22 @@
 confirmation()
 {
   local text=$1
-  local defaultno=$2
-  local height=$3
-  local width=$4
+  local yesButtonText=$2
+  local noButtonText=$3
+  local defaultno=$4
+  local height=$5
+  local width=$6
+  local answer=-100
 
   if [ $defaultno ]; then
-     whiptail --title " Confirmation " --defaultno --yes-button "Yes" --no-button "No" --yesno " $1 
+     whiptail --title " Confirmation " --defaultno --yes-button "$yesButtonText" --no-button "$noButtonText" --yesno " $text
 
- Are you sure?
   " $height $width
   else
-    whiptail --title " Confirmation " --yes-button "Yes" --no-button "No" --yesno " $1 
+    whiptail --title " Confirmation " --yes-button "$yesButtonText" --no-button "$noButtonText" --yesno " $text
 
- Are you sure?
   " $height $width
   fi
-  return $?
+  answer=$?
+  return $answer
 }