This is common enough that we probably should have one available. Saves declaring a variable, calling flush, etc. Change-Id: Ib21627e9e4caea01c729ad0dbb6266fdd30bb533 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/78788 Commit-Queue: Adam Langley <agl@google.com> Auto-Submit: David Benjamin <davidben@google.com> Commit-Queue: David Benjamin <davidben@google.com> Reviewed-by: Adam Langley <agl@google.com>