revision.c: explain what tree_difference does

diff --git a/Documentation/git-pack-redundant.txt b/Documentation/git-pack-redundant.txt
index 7d54b17e37b1065444b9ce100013e4a505af218d..94bbea0db2caf32635cfa8fc199e8150b1cd05f2 100644 (file)
--- a/Documentation/git-pack-redundant.txt
+++ b/Documentation/git-pack-redundant.txt
@@ -3,7 +3,7 @@ git-pack-redundant(1)
 
 NAME
 ----
-git-pack-redundant - Program used to find redundant pack files
+git-pack-redundant - Find redundant pack files
 
 
 SYNOPSIS
@@ -21,7 +21,7 @@ given will be ignored when checking which packs are required. This makes the
 following command useful when wanting to remove packs which contain unreachable
 objects.
 
-git-fsck-objects --full --unreachable | cut -d ' ' -f3 | \
+git-fsck --full --unreachable | cut -d ' ' -f3 | \
 git-pack-redundant --all | xargs rm
 
 OPTIONS