do not write null sha1s to on-disk index

diff --git a/Documentation/git.txt b/Documentation/git.txt
index 22fadeb114b56249920a3338a6ceb7bd71615a79..8f3167587d7b9a49a24d80e5368d325b4707056c 100644 (file)
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -44,25 +44,33 @@ unreleased) version of git, that is available from 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v1.7.9.2/git.html[documentation for release 1.7.9.2]
+* link:v1.7.9.7/git.html[documentation for release 1.7.9.7]
 
 * release notes for
+  link:RelNotes/1.7.9.7.txt[1.7.9.7],
+  link:RelNotes/1.7.9.6.txt[1.7.9.6],
+  link:RelNotes/1.7.9.5.txt[1.7.9.5],
+  link:RelNotes/1.7.9.4.txt[1.7.9.4],
+  link:RelNotes/1.7.9.3.txt[1.7.9.3],
   link:RelNotes/1.7.9.2.txt[1.7.9.2],
   link:RelNotes/1.7.9.1.txt[1.7.9.1],
   link:RelNotes/1.7.9.txt[1.7.9].
 
-* link:v1.7.8.4/git.html[documentation for release 1.7.8.4]
+* link:v1.7.8.6/git.html[documentation for release 1.7.8.6]
 
 * release notes for
+  link:RelNotes/1.7.8.6.txt[1.7.8.6],
+  link:RelNotes/1.7.8.5.txt[1.7.8.5],
   link:RelNotes/1.7.8.4.txt[1.7.8.4],
   link:RelNotes/1.7.8.3.txt[1.7.8.3],
   link:RelNotes/1.7.8.2.txt[1.7.8.2],
   link:RelNotes/1.7.8.1.txt[1.7.8.1],
   link:RelNotes/1.7.8.txt[1.7.8].
 
-* link:v1.7.7.6/git.html[documentation for release 1.7.7.6]
+* link:v1.7.7.7/git.html[documentation for release 1.7.7.7]
 
 * release notes for
+  link:RelNotes/1.7.7.7.txt[1.7.7.7],
   link:RelNotes/1.7.7.6.txt[1.7.7.6],
   link:RelNotes/1.7.7.5.txt[1.7.7.5],
   link:RelNotes/1.7.7.4.txt[1.7.7.4],
@@ -709,6 +717,12 @@ other
        a pager.  See also the `core.pager` option in
        linkgit:git-config[1].
 
+'GIT_EDITOR'::
+       This environment variable overrides `$EDITOR` and `$VISUAL`.
+       It is used by several git comands when, on interactive mode,
+       an editor is to be launched. See also linkgit:git-var[1]
+       and the `core.editor` option in linkgit:git-config[1].
+
 'GIT_SSH'::
        If this environment variable is set then 'git fetch'
        and 'git push' will use this command instead