Fix recipe comments for ASAN.

No-Try: true
Change-Id: Ifd97ba438fd30d2d9197857c86bfb010a97827a3
Reviewed-on: https://skia-review.googlesource.com/79702
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
2 files changed