config/format.txt: clarify behavior of multiple format.notes

Denton-L · gitster · commit 66f79ee23d51 · 2019-12-13T11:07:00.000-08:00
In 8164c96 (format-patch: use --notes behavior for format.notes, 2019-12-09), we slightly tweaked the behavior of having multiple `format.notes` configuration variables. We did not update the documentation to reflect this, however. Explictly state the behavior of having multiple `format.notes` configuration variables so users are clear on what to expect. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/config/format.txt b/Documentation/config/format.txt
@@ -99,4 +99,20 @@ If one wishes to use the ref `ref/notes/true`, please use that literal
 instead.
 +
 This configuration can be specified multiple times in order to allow
-multiple notes refs to be included.
+multiple notes refs to be included. In that case, it will behave
+similarly to multiple `--[no-]notes[=]` options passed in. That is, a
+value of `true` will show the default notes, a value of `<ref>` will
+also show notes from that notes ref and a value of `false` will negate
+previous configurations and not show notes.
++
+For example,
++
+------------
+[format]
+	notes = true
+	notes = foo
+	notes = false
+	notes = bar
+------------
++
+will only show notes from `refs/notes/bar`.
