Make failure to check file stop the deployment

Before this, checker issues were only logged. This stops the deployment if any configuration is incorrect.

deploy/multideploy.sh

@@ -108,12 +108,15 @@ _preprocess_deployfile() {
   done
   IFS=$OLDIFS
 
-  if [ -n "$found_file" ]; then
-    _check_deployfile "$DOMAIN_PATH/$found_file"
-  else
+  if [ -z "$found_file" ];
+  then
     _err "Deploy file not found. Go to https://github.com/acmesh-official/acme.sh/wiki/deployhooks#36-deploying-to-multiple-services-with-the-same-hooks to see how to create one."
     return 1
   fi
+  if ! _check_deployfile "$DOMAIN_PATH/$found_file"; then
+    _err "Deploy file is not valid: $DOMAIN_PATH/$found_file"
+    return 1
+  fi
 
   echo "$DOMAIN_PATH/$found_file"
 }