Ensure that downloaded script is executable

src/freedombone-image

@@ -190,6 +190,7 @@ function image_setup {
                 echo $"No debian debootstrap script was found for $DEBIAN_VERSION"
                 return
             fi
+            sudo chmod +x /usr/share/debootstrap/scripts/${DEBIAN_VERSION}
             ;;
         *)
             echo $'Unkown operating system'