GitLab

Replaces all instances of |#| as the numeric placeholder in
pluralization strings with the new |{...}| format, as outlined in
go/icu-message-migration.

Bug: None
Change-Id: I4e3409242e0b6bf94cb58de7327a381bfe237363
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2423404Reviewed-by: Rainhard Findling <rainhard@chromium.org>
Commit-Queue: dpapad <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809271}