Replace deprecated io/ioutil with modern equivalents.
Review Request #14912 — Created March 17, 2026 and submitted — Latest diff uploaded
The
io/ioutilpackage has been deprecated since Go 1.16. This change
replaces these API uses with modern equivalents:
ioutil.ReadAll->io.ReadAllioutil.ReadFile->os.ReadFileioutil.WriteFile->os.WriteFileioutil.TempDir->os.MkdirTempioutil.TempFile->os.CreateTemp
Ran unit tests.