Exit on directory fail

src/freedombone-app-matrix

@@ -412,7 +412,7 @@ function create_matrix_user_removal_script {
 
     matrix_remove_user=/usr/bin/matrix-remove-user
     { echo '#!/bin/bash';
-      echo "cd $MATRIX_DATA_DIR";
+      echo "cd $MATRIX_DATA_DIR || exit 1";
       echo "remove_username=\$1";
       echo "ADMIN=\"@${MY_USERNAME}:$MATRIX_DOMAIN_NAME\"";
       echo 'BUSY="pragma busy_timeout=20000"';