git-read-tree.txt: correct sparse-checkout and skip-worktree description

diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 620d50e71f1a04f587079180ff2d987521d38786..9a075bc4d24d59c7b585e204e6feb50326c762f3 100644 (file)
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -9,7 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'git rebase' [-i | --interactive] [options] [--onto <newbase>]
-       <upstream> [<branch>]
+       [<upstream>] [<branch>]
 'git rebase' [-i | --interactive] [options] --onto <newbase>
        --root [<branch>]
 
@@ -21,6 +21,12 @@ If <branch> is specified, 'git rebase' will perform an automatic
 `git checkout <branch>` before doing anything else.  Otherwise
 it remains on the current branch.
 
+If <upstream> is not specified, the upstream configured in
+branch.<name>.remote and branch.<name>.merge options will be used; see
+linkgit:git-config[1] for details.  If you are currently not on any
+branch or if the current branch does not have a configured upstream,
+the rebase will abort.
+
 All changes made by commits in the current branch but that are not
 in <upstream> are saved to a temporary area.  This is the same set
 of commits that would be shown by `git log <upstream>..HEAD` (or
@@ -217,7 +223,8 @@ leave out at most one of A and B, in which case it defaults to HEAD.
 
 <upstream>::
        Upstream branch to compare against.  May be any valid commit,
-       not just an existing branch name.
+       not just an existing branch name. Defaults to the configured
+       upstream for the current branch.
 
 <branch>::
        Working branch; defaults to HEAD.