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@@ -121,6 +121,16 @@ its behaviour. Try to make sure your explanation can be understood
without external resources. Instead of giving a URL to a mailing list
archive, summarize the relevant points of the discussion.
+If you want to reference a previous commit in the history of a stable
+branch, use the format "abbreviated sha1 (subject, date)",
+with the subject enclosed in a pair of double-quotes, like this:
+
+ Commit f86a374 ("pack-bitmap.c: fix a memleak", 2015-03-30)
+ noticed that ...
+
+The "Copy commit summary" command of gitk can be used to obtain this
+format.
+
(3) Generate your patch using Git tools out of your commits.