release 2019-12-01
Fix nullptr-with-nonzero-offset bugs found by UBSan. Change-Id: Ic94c887b3ba4211bec5f7eb096f06fe5bca53b70 Reviewed-on: https://code-review.googlesource.com/c/re2/+/48852 Reviewed-by: Paul Wankadia <junyer@google.com>