Getting error while running lvs command on Linux

Can some one help to overcome out of this issue .

[root@onrequest # lvs
File descriptor 6 (/dev/pts/0) leaked on lvs invocation. Parent PID 8379: -bash
[root@onrequest ~]# pvs
File descriptor 6 (/dev/pts/0) leaked on pvs invocation. Parent PID 8379: -bash
[root@onrequest ~]# vgs
File descriptor 6 (/dev/pts/0) leaked on vgs invocation. Parent PID 8379: -bash