[rhcos-4.11] *: address golangci-lint lints #3269
Merged
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There's a lot going on here, but mostly a lot of error-checking added. Ignored errors in a few cases. Logged in a few others.
Deleted deprecated package golang.org/x/crypto/ssh/terminal in favour of golang.org/x/term.
Delete a bunch of unused variables.
(cherry picked from commit e3cbf04)
jlebon: I didn't backport the migration from
golang.org/x/crypto/ssh/terminal
togolang.org/x/term
tokeep it simple. The main thing I'm interested in is the improved
error-handling because we're hitting an issue right now in
rhcos/upgrade.go
which I think would be helped by this.