Search for and remove temp log files found in the output directory.

def cleanup_log_files(outputfile):
    """Search for and remove temp log files found in the output directory."""
    d = os.path.dirname(os.path.abspath(outputfile))
    logfiles = [f for f in os.listdir(d) if f.endswith('ogg.log')]
    for f in logfiles:
        os.remove(f)