Fix typos

Signed-off-by: Andy Qin <qinandy@amazon.com>

Author: q-andy

libs/core/src/main/java/org/opensearch/core/common/io/stream/StreamInput.java

@@ -1306,7 +1306,7 @@ public <E extends Enum<E>> EnumSet<E> readEnumSet(Class<E> enumClass) throws IOE
     }
 
     /**
-     * Reads an optional enum set with type E that was serialized based on the value of the enum's ordinal
+     * Reads an optional enum set with type E that was serialized based on the value of each enum's ordinal
      * The set is expected to have been written using {@link StreamOutput#writeOptionalEnumSet(EnumSet)}
      *
      * @return the enum set of strings

libs/core/src/main/java/org/opensearch/core/common/io/stream/StreamOutput.java

@@ -1256,7 +1256,7 @@ public <E extends Enum<E>> void writeEnumSet(EnumSet<E> enumSet) throws IOExcept
     }
 
     /**
-     * Writes an optional EnumSet with type E that serializes enum each based on it's ordinal value
+     * Writes an optional EnumSet with type E that serializes each enum based on its ordinal value
      * For null or empty enum set, writes false;
      */
     public <E extends Enum<E>> void writeOptionalEnumSet(@Nullable EnumSet<E> enumSet) throws IOException {

libs/core/src/test/java/org/opensearch/core/common/io/stream/BaseStreamTests.java

@@ -567,7 +567,6 @@ private void assertGenericRoundtrip(Object original) throws IOException {
         });
     }
 
-
     private enum TestEnum {
         A, B, C, D, E;
     }