'Find the apport crash for the process
Returns:
`str`: Raw contents of the crash file or ``None``.'

def apport_read_crash_data(self):

    uid = self.uid
    crash_name = self.exe.replace('/', '_')
    crash_path = ('/var/crash/%s.%i.crash' % (crash_name, uid))
    try:
        log.debug(('Looking    for    Apport    crash    at    %r' % crash_path))
        data = self.read(crash_path)
    except Exception:
        return None
    try:
        self.unlink(crash_path)
    except Exception:
        pass
    return data
