git-rev-tree: teach it about tag references

diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index f4e95a97c30b93538cfdc332dce7b95570b5728d..ea680ccbfadb701d650e44ec58f2a72bc97fec44 100644 (file)
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -9,7 +9,7 @@ git-diff-tree - Compares the content and mode of blobs found via two tree object
 
 SYNOPSIS
 --------
-'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\*
+'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\*
 
 DESCRIPTION
 -----------
@@ -34,15 +34,17 @@ OPTIONS
        git-diff-tree, this flag implies '-r' as well.
 
 -M::
-       Detect renames; implies -p, in turn implying also '-r'.
+       Detect renames.
 
 -C::
-       Detect copies as well as renames; implies -p, in turn
-       implying also '-r'.
+       Detect copies as well as renames.
 
 -R::
        Output diff in reverse.
 
+-S<string>::
+       Look for differences that contains the change in <string>.
+
 -r::
        recurse