Remove trailing whitespace in files

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=135386752

java/google/registry/model/domain/flags/FlagsCreateCommandExtension.java

@@ -30,7 +30,7 @@ import javax.xml.bind.annotation.XmlRootElement;
 public class FlagsCreateCommandExtension implements CommandExtension {
   @XmlElement(name = "flag")
   List<String> flags;
-  
+
   public List<String> getFlags() {
     return flags;
   }