contributor-guide: submit-changes: make the Cc tag follow kernel guidelines

The kernel docs specifies[1] a Cc: tag and not CC: tag, so let's align
with that.

[1] https://www.kernel.org/doc/html/latest/process/submitting-patches.html#when-to-use-acked-by-cc-and-co-developed-by

(From yocto-docs rev: 49934860119ccd0844b0c600ea6be0a776b11a12)

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
(cherry picked from commit f800fef4e9e2c1d3584ac49be8324638d2923b17)
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/contributor-guide/submit-changes.rst b/documentation/contributor-guide/submit-changes.rst
index 1d5bb9c155..f77dc91467 100644
--- a/documentation/contributor-guide/submit-changes.rst
+++ b/documentation/contributor-guide/submit-changes.rst
@@ -223,7 +223,7 @@ to add the upgraded version.
       or are submitting an unmodified patch again as part of a
       new iteration of your patch series.
 
-   -  ``CC``: name and email of people you want to send a copy
+   -  ``Cc``: name and email of people you want to send a copy
       of your changes to. This field will be used by ``git send-email``.
 
    See `more guidance about using such tags