interpret-trailers: add an option to show only the trailers

diff --git a/Documentation/git-interpret-trailers.txt b/Documentation/git-interpret-trailers.txt
index 31cdeaecdfde8fb358c35c3a9a2e3c4279d440d0..295dffbd2104ba7b471b69bc1300deb002318e53 100644 (file)
--- a/Documentation/git-interpret-trailers.txt
+++ b/Documentation/git-interpret-trailers.txt
@@ -80,6 +80,9 @@ OPTIONS
        trailer to the input messages. See the description of this
        command.
 
+--only-trailers::
+       Output only the trailers, not any other parts of the input.
+
 CONFIGURATION VARIABLES
 -----------------------