Replace deprecated ioutil pkg with os & io #17392
Merged
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As of Go 1.16, the same functionality is now provided by package io or
package os, and those implementations should be preferred in new code.
So replacing all usage of
ioutil
pkg withio
&os
.Do note that the switch from
ioutil.TempFile
toos.CreateTemp
in the go doc itself (i.e. the former just calls the later) was only done in Go 1.17, but the functionality of os.CreateTemp was already available in 1.16 and thus is safe for use with Go 1.16 as well.