[PATCH] doc: Add git commands to generate Fixes

[Bertrand Marquis <bertrand.marquis@xxxxxxx>]

Add git commands examples that can be used to generate fixes and how to
use the pretty configuration for git.
This should make it easier for contributors to have the right format.

Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 docs/process/sending-patches.pandoc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/process/sending-patches.pandoc 
b/docs/process/sending-patches.pandoc
index 7ff7826c992b..9c4c4655323b 100644
--- a/docs/process/sending-patches.pandoc
+++ b/docs/process/sending-patches.pandoc
@@ -102,6 +102,10 @@ E.g.:
 
     Fixes: 67d01cdb5518 ("x86: infrastructure to allow converting certain 
indirect calls to direct ones")
 
+If git was configured as explained earlier, this can be retrieved using
+``git log --pretty=fixes`` otherwise ``git log --abbrev=12 --oneline`` will
+give the proper tag and title.
+
 ### Backport:
 
 A backport tag is an optional tag in the commit message to request a
-- 
2.25.1