sha1_name: warning ambiguous refs.

diff --git a/Documentation/git-diff-files.txt b/Documentation/git-diff-files.txt
index 3b04bfeec6ad18edffd9b6d44709a10fdda36b8c..481b8b3aa09539ff71a3f48b0b50b75e9ccce7a7 100644 (file)
--- a/Documentation/git-diff-files.txt
+++ b/Documentation/git-diff-files.txt
@@ -8,7 +8,7 @@ git-diff-files - Compares files in the working tree and the index
 
 SYNOPSIS
 --------
-'git-diff-files' [-q] [<common diff options>] [<path>...]
+'git-diff-files' [-q] [-0|-1|-2|-3|-c|--cc] [<common diff options>] [<path>...]
 
 DESCRIPTION
 -----------
@@ -21,6 +21,21 @@ OPTIONS
 -------
 include::diff-options.txt[]
 
+-1 -2 -3 or --base --ours --theirs, and -0::
+       Diff against the "base" version, "our branch" or "their
+       branch" respectively.  With these options, diffs for
+       merged entries are not shown.
++
+The default is to diff against our branch (-2) and the 
+cleanly resolved paths.  The option -0 can be given to
+omit diff output for unmerged entries and just show "Unmerged".
+
+-c,--cc::
+       This compares stage 2 (our branch), stage 3 (their
+       branch) and the working tree file and outputs a combined
+       diff, similar to the way 'diff-tree' shows a merge
+       commit with these flags.
+
 -q::
        Remain silent even on nonexisting files