app name during upgrade

src/freedombone-utils-setup

         item_in_array "${app_name}" "${APPS_COMPLETED[@]}"
         if [[ $? != 0 ]]; then
             function_check app_is_installed
-            if [[ "$(app_is_installed $a)" == "1" ]]; then
+            if [[ "$(app_is_installed $app_name)" == "1" ]]; then
                 echo ''
                 echo ''
-                echo $"Upgrading $a"
+                echo $"Upgrading $app_name"
                 app_load_variables ${app_name}
                 APPS_COMPLETED+=("${app_name}")
                 function_check upgrade_${app_name}