transfer_file_over_ipv6: fix color char

[dzhengfy]

The command might output ip address with color characters which will break the script, like below.
Get ipv6 address of vm1: �[34m2620:52:11:1601:982f:7bff:fe94:1415�[0m

This is to disable the color characters in the outputs.

Signed-off-by: Dan Zheng dzheng@redhat.com

[dzhengfy]

Before the fix:
(1/1) Host_RHEL.m9.u6.qcow2.virtio_scsi.up.virtio_net.Guest.RHEL.9.6.0.aarch64.page_64k.io-github-autotest-qemu.bigfile_transfer_over_ipv6.remote_addr.arm64-pci: ERROR: SCP transfer failed (status: 255, output: 'Executing: program /usr/bin/ssh host \033[34m2620:52:11:1601:9824:20ff:fe54:9207\033[0m, user root, command sftp\nhostname contains invalid characters\nConnection closed\n') (112.42 s)

After the fix:
(1/1) Host_RHEL.m9.u6.qcow2.virtio_scsi.up.virtio_net.Guest.RHEL.9.6.0.aarch64.page_64k.io-github-autotest-qemu.bigfile_transfer_over_ipv6.remote_addr.arm64-pci: PASS (132.35 s)

[dzhengfy]

This depends on

• utils_net: disable color chars avocado-framework/avocado-vt#4060

[YvanY0]

This issue should be fixed for the entire guest's lifecycle, not at the test case level. We have a fixed for el10, can also apply to el9.

[dzhengfy]

based on above comment, I close this one.