git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt
index 5e9cbf875d72ae4a537467197ddde98dbec3cf3b..df42cb10f24825623ffe32579f0cfbcda6f0337b 100644 (file)
--- a/Documentation/git-cat-file.txt
+++ b/Documentation/git-cat-file.txt
@@ -3,7 +3,7 @@ git-cat-file(1)
 
 NAME
 ----
-git-cat-file - Provide content or type information for repository objects
+git-cat-file - Provide content or type/size information for repository objects
 
 
 SYNOPSIS
@@ -19,7 +19,9 @@ or '-s' is used to find the object size.
 OPTIONS
 -------
 <object>::
-       The sha1 identifier of the object.
+       The name of the object to show.
+       For a more complete list of ways to spell object names, see
+       "SPECIFYING REVISIONS" section in linkgit:git-rev-parse[1].
 
 -t::
        Instead of the content, show the object type identified by
@@ -68,5 +70,4 @@ Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel
 
 GIT
 ---
-Part of the gitlink:git[7] suite
-
+Part of the linkgit:git[7] suite