Deprecate DBCursor#hint(String)

JAVA-3028

Author: jyemin

driver-legacy/src/main/com/mongodb/DBCursor.java

@@ -440,7 +440,9 @@ public DBCursor hint(final DBObject indexKeys) {
      * @param indexName the name of an index
      * @return same DBCursor for chaining operations
      * @mongodb.driver.manual reference/operator/meta/hint/ $hint
+     * @deprecated Prefer {@link #hint(DBObject)}
      */
+    @Deprecated
     public DBCursor hint(final String indexName) {
         findOptions.getModifiers().put("$hint", indexName);
         return this;