xdiff: generate "anti-diffs" aka what is common to two files

diff --git a/INSTALL b/INSTALL
index 63af8eccf3ce115a992cc3f1dc812e5842e3f75f..f8337e2a4d154157ed805eeb10f52d01513f7adb 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -96,7 +96,7 @@ Issues of note:
 
        $ mkdir manual && cd manual
        $ git init-db
-       $ git clone-pack git://git.kernel.org/pub/scm/git/git.git man html |
+       $ git fetch-pack git://git.kernel.org/pub/scm/git/git.git man html |
          while read a b
          do
            echo $a >.git/$b