update-index: refuse to add working tree items beyond symlinks

diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index 68feb081721a139f478f13aa7b533121432b18bd..8c8f35b7a762d42d3c45ff9f4eee1cb32d3917b6 100644 (file)
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -20,7 +20,7 @@ Compares the content and mode of the blobs found via two tree objects.
 If there is only one <tree-ish> given, the commit is compared with its parents
 (see --stdin below).
 
-Note that `git-diff-tree` can use the tree encapsulated in a commit object.
+Note that 'git-diff-tree' can use the tree encapsulated in a commit object.
 
 OPTIONS
 -------
@@ -58,25 +58,25 @@ behavior.  This does not apply to the case where two <tree-ish>
 separated with a single space are given.
 
 -m::
-       By default, `git-diff-tree --stdin` does not show
+       By default, 'git-diff-tree --stdin' does not show
        differences for merge commits.  With this flag, it shows
        differences to that commit from all of its parents. See
        also '-c'.
 
 -s::
-       By default, `git-diff-tree --stdin` shows differences,
+       By default, 'git-diff-tree --stdin' shows differences,
        either in machine-readable form (without '-p') or in patch
        form (with '-p').  This output can be suppressed.  It is
        only useful with '-v' flag.
 
 -v::
-       This flag causes `git-diff-tree --stdin` to also show
+       This flag causes 'git-diff-tree --stdin' to also show
        the commit message before the differences.
 
 include::pretty-options.txt[]
 
 --no-commit-id::
-       `git-diff-tree` outputs a line with the commit ID when
+       'git-diff-tree' outputs a line with the commit ID when
        applicable.  This flag suppressed the commit ID output.
 
 -c::
@@ -93,11 +93,11 @@ include::pretty-options.txt[]
        This flag changes the way a merge commit patch is displayed,
        in a similar way to the '-c' option. It implies the '-c'
        and '-p' options and further compresses the patch output
-       by omitting hunks that show differences from only one
-       parent, or show the same change from all but one parent
-       for an Octopus merge.  When this optimization makes all
-       hunks disappear, the commit itself and the commit log
-       message is not shown, just like in any other "empty diff" case.
+       by omitting uninteresting hunks whose the contents in the parents
+       have only two variants and the merge result picks one of them
+       without modification.  When all hunks are uninteresting, the commit
+       itself and the commit log message is not shown, just like in any other
+       "empty diff" case.
 
 --always::
        Show the commit itself and the commit log message even