Typo in update scripts (#2707)

* Fix typo

* Change no update function msg

.github/CONTRIBUTOR_AND_GUIDES/ct/AppName.md

@@ -247,7 +247,7 @@ function update_script() {
         msg_error "No ${APP} Installation Found!"
         exit
     fi
-    msg_error "There is currently no automatic update function for ${APP}."
+    msg_error "Currently we don't provide an update function for this ${APP}."
     exit
 }
 ```