ocsp: fix typo
ocsp: fix typo

Change-Id: Icd770cee9ce183f75c49c301f96a4aab73e80303
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/381674
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
Trust: Cherry Mui <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>

golang/crypto,golang/crypto,golang/crypto