doc: lei-{p2q,rediff}: note implicit --stdin

[public-inbox.git] / Documentation / lei-rediff.pod

diff --git a/Documentation/lei-rediff.pod b/Documentation/lei-rediff.pod
index 5fdde230ee24a53f3792fa6ecd8d7a243a47449e..e968fb20041813827f862417bb38070105109025 100644 (file)
--- a/Documentation/lei-rediff.pod
+++ b/Documentation/lei-rediff.pod
@@ -24,7 +24,8 @@ supported.
 
 =item --stdin
 
-Read message from stdin.
+Read message from stdin.  This is implicit if no arguments are given
+and stdin is a pipe or regular file.
 
 =item --git-dir=DIR