Changed comment

Author: tkyc

src/main/java/com/microsoft/sqlserver/jdbc/SQLServerPreparedStatement.java

@@ -147,7 +147,7 @@ private void setPreparedStatementHandle(int handle) {
     private static final Pattern execEscapePattern = Pattern.compile("^\\s*(?i)(?:exec|execute)\\b");
 
     /**
-     * For caching data related to bulkcopy
+     * For caching data related to batch insert with bulkcopy
      */
     private SQLServerBulkCopy bcOperation = null;
     private String bcOperationTableName = null;