Description of problem:
A lot of error "Unable to use a TTY - input is not a terminal or the right kind of file" shown when running must gather

Version-Release number of selected component (if applicable):
OCP 4.2
CNV 2.1

How reproducible:
Always

Steps to Reproduce:
1. Run the must gather
#oc adm must-gather --image=brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888/container-native-virtualization/cnv-must-gather:v2.1.0-12

Actual results:
Got a lot of error as below:
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD command terminated with exit code 1
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD command terminated with exit code 1
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD command terminated with exit code 1
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD command terminated with exit code 1
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD command terminated with exit code 1
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file
[must-gather-tcnwh] POD command terminated with exit code 1
[must-gather-tcnwh] POD Unable to use a TTY - input is not a terminal or the right kind of file

Expected results:
No such error shown

Additional info:
Please refer to attachment for more detail must gather output