facebook/xctool — pull request #341 by yuichi-hamasaki (2014-03-19 05:55:08+00:00)
Title: on Xcode 5.1, setting env variables is changed from setenv to export

on Xcode 5.1, json-compilation-database generates empty compile_commands.json.
on Xcode 5.1, setting env variables is changed from setenv to export.