tree 6faf5e363ccc41ede14196e625ec373b8495e5a7
parent 41d678d1df78cd0410143162dff954e6dc09300f
author Michael Munday <munday@ca.ibm.com> 1485459794 -0500
committer Brad Fitzpatrick <bradfitz@golang.org> 1485461152 +0000

crypto/chacha20poly1305/internal/chacha20: add missing copyright header

The file was originally added in 2016.

Change-Id: I1b5c01400fb73e83f39c086ea1235a948d27308d
Reviewed-on: https://go-review.googlesource.com/35874
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>