Fix incorrect change during refactoring.

cxa_guard_abort should still broadcast on exit.

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@357956 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit cb31f3d9f6ff64c044921996d2bb2efc4c028765)

Bug: http://b/189279320
Test: treehugger
Change-Id: Ie916355d58cb03da1f0d006b3da2a284f93becf3
1 file changed