[libFuzzer] Fix output format in data flow merge script after Py3 change.

Reviewers: Dor1s

Reviewed By: Dor1s

Subscribers: delcypher, #sanitizers, llvm-commits

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D60288

llvm-svn: 357730
GitOrigin-RevId: 665b6b30ddeae26a3d215659f703bbe8a47cba77
1 file changed