revision.c: explain what tree_difference does

diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt
index 0fa47e3b018815ffa9de23725737fe2b599eaead..d39abc126dec70108625af13d11541b771c8e85d 100644 (file)
--- a/Documentation/git-repack.txt
+++ b/Documentation/git-repack.txt
@@ -3,8 +3,7 @@ git-repack(1)
 
 NAME
 ----
-git-repack - Script used to pack a repository from a collection of
-objects into pack files.
+git-repack - Pack unpacked objects in a repository
 
 
 SYNOPSIS
@@ -31,9 +30,9 @@ OPTIONS
        Instead of incrementally packing the unpacked objects,
        pack everything available into a single pack.
        Especially useful when packing a repository that is used
-       for a private development and there no need to worry
-       about people fetching via dumb protocols from it.  Use
-       with '-d'.
+       for private development and there is no need to worry
+       about people fetching via dumb file transfer protocols
+       from it.  Use with '-d'.
 
 -d::
        After packing, if the newly created packs make some