GitLab

For some reason the regex was only selecting symbols starting with
one ? while there are some Abseil symbols that start with ??.

This was discovered by crrev.com/c/2245897.

Bug: 1046390
Change-Id: I79e453ef6d30017eb9c078a95aa16e3e949186fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2275887
Commit-Queue: Mirko Bonadei <mbonadei@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#784427}