[re2] Fix re2 build

Change-Id: Iaf29a0abb359e3edf6a98e60049d2d1cb1458fb0
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/re2/+/525842
Reviewed-by: Shai Barack <shayba@google.com>
3 files changed