[Intel-gfx] [PATCH] drm-intel: Document sob requirements better

[Daniel Vetter]

Yeah dim apply-patch could probably autofudge this, but it's too close
to w/e time for me to figure out how to do that.

Noticed since a few folks forgot this when pushing other people's
patches.

Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
 drm-intel.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drm-intel.rst b/drm-intel.rst
index cf58d64af1aa..35800ecc700f 100644
--- a/drm-intel.rst
+++ b/drm-intel.rst
@@ -346,6 +346,9 @@ An inexhaustive list of details to check:
 
 * The patch does not introduce new `sparse` warnings.
 
+* When pushing someone else's patch you must add your own signed-off per
+  http://developercertificate.org/.
+
 On Confidence, Complexity, and Transparency
 -------------------------------------------
 
-- 
2.7.0.rc3