fixed java doc error

src/main/java/com/alibaba/druid/sql/ast/expr/SQLBinaryOperator.java

@@ -19,7 +19,6 @@ package com.alibaba.druid.sql.ast.expr;
  * 
  * 二元操作符
  * @author wenshao 2011-5-20 下午12:32:02
- * @formatter:off
  */
 public enum SQLBinaryOperator {
     Union("UNION", 0), 

src/main/java/com/alibaba/druid/sql/ast/statement/SQLCloseStatement.java

@@ -19,10 +19,8 @@ import com.alibaba.druid.sql.ast.SQLStatementImpl;
 import com.alibaba.druid.sql.visitor.SQLASTVisitor;
 /**
  * 
- * @Description: MySql cursor close statement
- * @author zz email:455910092@qq.com
- * @date 2015-9-14
- * @version V1.0
+ * MySql cursor close statement
+ * @author zz [455910092@qq.com]
  */
 public class SQLCloseStatement extends SQLStatementImpl{
 	

src/main/java/com/alibaba/druid/sql/ast/statement/SQLOpenStatement.java

@@ -19,10 +19,7 @@ import com.alibaba.druid.sql.ast.SQLStatementImpl;
 import com.alibaba.druid.sql.visitor.SQLASTVisitor;
 /**
  * 
- * @Description: MySql cursor open statement
- * @author zz email:455910092@qq.com
- * @date 2015-9-14
- * @version V1.0
+ * @author zz [455910092@qq.com]
  */
 public class SQLOpenStatement extends SQLStatementImpl{