revision.c: explain what tree_difference does

diff --git a/Documentation/git-pack-redundant.txt b/Documentation/git-pack-redundant.txt
index 8fb065943862e55c6cc0b3c7408506d06ad510f4..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
@@ -29,7 +29,7 @@ OPTIONS
 
 
 --all::
-       Processes all packs. Any filenames on the commandline are ignored.
+       Processes all packs. Any filenames on the command line are ignored.
 
 --alt-odb::
        Don't require objects present in packs from alternate object