Per https://golang.org/pkg/io/ioutil/#TempFile description, caller should remove the file when no longer needed. Change-Id: I4c2a83c1c9bbd89f423d1a3334751e86f35b1cf6 GitHub-Last-Rev: fac91d1a59baf9abafa98add195515ec78513819 GitHub-Pull-Request: golang/crypto#92 Reviewed-on: https://go-review.googlesource.com/c/crypto/+/189337 Run-TryBot: Alex Vaghin <ddos@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Alex Vaghin <ddos@google.com>