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-rw-r--r--Documentation/diff-options.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 6b73daf540..cd0b81adbb 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -820,7 +820,11 @@ ifndef::git-log[]
--quiet::
Disable all output of the program. Implies `--exit-code`.
- Disables execution of external diff helpers.
+ Disables execution of external diff helpers whose exit code
+ is not trusted, i.e. their respective configuration option
+ `diff.trustExitCode` or `diff.<driver>.trustExitCode` or
+ environment variable `GIT_EXTERNAL_DIFF_TRUST_EXIT_CODE` is
+ false.
endif::git-log[]
endif::git-format-patch[]