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-rw-r--r--Documentation/diff-options.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 5d22b7b58c..9ecc1d7bc4 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -93,7 +93,9 @@ endif::git-format-patch[]
--check::
Warn if changes introduce trailing whitespace
- or an indent that uses a space before a tab.
+ or an indent that uses a space before a tab. Exits with
+ non-zero status if problems are found. Not compatible with
+ --exit-code.
--full-index::
Instead of the first handful characters, show full