preg: ensure 'extra' is nonnull
commite8e023fe765cf64d0291e3b091eb072d7f4e79c3
authorOri Livneh <ori@wikimedia.org>
Tue, 17 Jun 2014 18:26:24 +0000 (17 11:26 -0700)
committerfacebook-github-bot <githubbot@fb.com>
Wed, 18 Jun 2014 00:01:14 +0000 (17 17:01 -0700)
tree126d409ddb02329230234c785ea431d01f09cc23
parent7711a1eaf546844dc9cc9123d8c457991f49eef2
preg: ensure 'extra' is nonnull

Summary: Follow-up to pull request #2927.
Closes #2956

Reviewed By: @JoelMarcey

Differential Revision: D1385998

Pulled By: @sgolemon
hphp/runtime/base/preg.cpp