https://github.com/google/pprof/compare/54271f7e092f...27840fff0d09

Change-Id: I7ded9be6deaaf8d11bd8d228bca8d7eb3ada8774
Reviewed-on: https://go-review.googlesource.com/c/go/+/205780
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>