The variable name is SSTATE_MIRROR, not STATE_MIRROR, and because of
the typo, it was not caught by the Python regexp.
(From yocto-docs rev: 7347f5343c4995c53da6b9a88a3912453def9669)
Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
7b87ca796a