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-rw-r--r--Documentation/git-format-patch.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index aba4c5febe..27304428a1 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -250,6 +250,11 @@ feeding the result to `git send-email`.
feature/v2`), or a revision range if the two versions of the series are
disjoint (for example `git format-patch --cover-letter
--range-diff=feature/v1~3..feature/v1 -3 feature/v2`).
++
+Note that diff options passed to the command affect how the primary
+product of `format-patch` is generated, and they are not passed to
+the underlying `range-diff` machinery used to generate the cover-letter
+material (this may change in the future).
--creation-factor=<percent>::
Used with `--range-diff`, tweak the heuristic which matches up commits