repair redis pipeline 1208

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/dataloader/OfflineAdOutSamplesLoader.java

@@ -60,7 +60,7 @@ public class OfflineAdOutSamplesLoader {
             FeatureGroup groupedFeature = entry.getKey();
             BaseFeature baseFeature = entry.getValue();
             Long featureIdentifier = baseFeature.getIdentifier();
-            featureList.add(String.valueOf(featureIdentifier));
+            featureList.add(String.valueOf(featureIdentifier) + ":1");
         }
         return label + "\t" + String.join("\t", featureList);
     }