Fix a typo in Javadoc (#8394)

Summary:
iterateLowerBound Slice representing the lower bound

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8394

Reviewed By: ajkr

Differential Revision: D29085721

Pulled By: jay-zhuang

fbshipit-source-id: a154375879395c48e9bd3794d296e70316894056

java/src/main/java/org/rocksdb/ReadOptions.java

@@ -437,7 +437,7 @@ public class ReadOptions extends RocksObject {
    *
    * Default: null
    *
-   * @param iterateLowerBound Slice representing the upper bound
+   * @param iterateLowerBound Slice representing the lower bound
    * @return the reference to the current ReadOptions.
    */
   public ReadOptions setIterateLowerBound(final AbstractSlice<?> iterateLowerBound) {