Revert "去掉空格"

This reverts commit dad92955c9ab84d161ba1bf12746f393babc893e.

src/main/scala/com/aliyun/odps/spark/examples/myUtils/FeatureTransform.java

@@ -228,7 +228,6 @@ public class FeatureTransform {
         if (null == attrMap || attrMap.isEmpty()) {
             return;
         }
-        attr = attr.trim();
         if (attrMap.containsKey(attr)) {
             VideoAttrSRBO bo = attrMap.get(attr);
             if (null != bo) {
@@ -264,7 +263,6 @@ public class FeatureTransform {
         }
         for (String attr : videoCateAttrs) {
             String attrVal = videoInfo.getOrDefault(attr, "");
-            attrVal = attrVal.trim();
             int attrId = FeatureUtils.getAttrId(attr, attrVal);
             if (attrId > 0) {
                 String key = String.format("%s@%s@%d", prefix, attr, attrId);