Fix potentially uninitialized struct used on MSVC
authorAndrew Krieger <andrew.krieger@oculus.com>
Tue, 29 Aug 2017 05:34:42 +0000 (22:34 -0700)
committerFacebook Github Bot <facebook-github-bot@users.noreply.github.com>
Tue, 29 Aug 2017 05:50:04 +0000 (22:50 -0700)
commite804df264c8e311d69244916977964f06243a614
treeb584ac5d85a07a0a989e33aa07a84d0f283d7313
parentd39c5f3dceb2c7eaf86e40ad1b839af8d7f0e1e5
Fix potentially uninitialized struct used on MSVC

Summary:
MSVC warns this might be used but uninitialized. Force
the struct to be zero initialized.

Reviewed By: yfeldblum

Differential Revision: D5585320

fbshipit-source-id: 9454a2a4a66c7689f42b1eb211dc57f5d3b88fea
folly/SharedMutex.h