docs/manual: add sob line for patch series

The -s is missing in the documentation when teaching how to use 'git
format-patch' to automatically add the sob line.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/docs/manual/contribute.txt b/docs/manual/contribute.txt
index 12e7f98bf6848fcc3379b1365370b0265d3e0b4d..b7e89444b736bbc6a253f6b34ca8f3ccb455abc2 100644 (file)
--- a/docs/manual/contribute.txt
+++ b/docs/manual/contribute.txt
@@ -272,7 +272,7 @@ This can be easily handled with +git format-patch+ by using the option
 
 ---------------------
 $ git format-patch --subject-prefix "PATCH v4" \
-    -M -o outgoing origin/master
+    -M -s -o outgoing origin/master
 ---------------------
 
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