SA1019: "io/ioutil" has been deprecated since Go 1.19: 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. See the specific function documentation for details. (staticcheck)

Error return value of `flagsParser.Parse` is not checked (errcheck)

Error return value of `mainSection.GenSecHeader` is not checked (errcheck)

var `compress` is unused (unused)

var `auto` is unused (unused)

SA1019: rand.Seed has been deprecated since Go 1.20 and an alternative has been available since Go 1.0: As of Go 1.20 there is no reason to call Seed with a random value. Programs that call Seed with a known value to get a specific sequence of results should use New(NewSource(seed)) to obtain a local random generator. (staticcheck)

SA1019: rand.Read has been deprecated since Go 1.20 because it shouldn't be used: For almost all use cases, [crypto/rand.Read] is more appropriate. (staticcheck)