Remove trailing whitespace in files

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

java/google/registry/tools/CreateLrpTokensCommand.java

@@ -121,7 +121,7 @@ public final class CreateLrpTokensCommand implements RemoteApiCommand {
   /**
    * This function generates at MOST {@code count} tokens, after filtering out any token strings
    * that already exist.
-   * 
+   *
    * <p>Note that in the incredibly rare case that all generated tokens already exist, this function
    * may return an empty set.
    */