Patch message pattern to avoid stack overflow

See bug for more details.

Bug:343280855
Change-Id: Id624965abdba4dab77ebd1c2c659901149f33b01
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/deps/icu/+/5637484
Reviewed-by: Shu-yu Guo <syg@chromium.org>
4 files changed