tree be074370dd2463306f90556af03bca0ee8f7166c
parent b8e376906718fd4ea1ec7c9be258c99ec40900a9
author Elliott Hughes <enh@google.com> 1455321653 -0800
committer Elliott Hughes <enh@google.com> 1455327217 -0800

Fix regerror(..., nullptr, 0).

Found by passing a bad regular expression to the Google benchmark
code (https://github.com/google/benchmark).

(cherry picked from commit cac2908b08f517802e719ddafe39f45c85c96a33)

Change-Id: I317a7c2ea6535998c0853029023fcefc88cb3750