use common function cd_root_path to cd to the root path

[MaXinjian]

Signed-off-by: Ma Xinjian maxj.fnst@cn.fujitsu.com

[k8s-ci-robot]

Hi @MaXinjian. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[fabriziopandini]

/ok-to-test

[fabriziopandini]

/lgtm

[fabriziopandini]

/approve cancel
to let someone else to take a look
(sorry forgot this repo was triggering automatic approval)

[fabriziopandini]

/approve

[neolit123]

/ok-to-test
/kind cleanup
/priority backlog

[neolit123]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini, MaXinjian, neolit123

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