use os.IsNotExist and other small fixes #15
Merged
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What type of PR is this?
/kind flake
What this PR does / why we need it:
This PR uses os.IsNotExist to verify if the file is not exist instead of checking the key words in the error message, because the words might be different in different OS and may be changed over time.
This PR also adds two small fixes.
Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Does this PR introduce a user-facing change?: