def rfc822_escape(header):
    """Return a version of the string escaped for inclusion in an
    RFC-822 header, by ensuring there are 8 spaces space after each newline.
    """
    lines = header.split('\n')
    sep = '\n' + 8 * ' '
    return sep.join(lines)
Return a version of the string escaped for inclusion in an
    RFC-822 header, by ensuring there are 8 spaces space after each newline.
    
product/gradle-plugin/src/main/python/setuptools/_distutils/util.py