t4012: Break up pipe into serial redirections

diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index fe38f667f9cd232c3c7a8bc7653648995b3ce4aa..31fc2e3aed613acd8cb6e4a56ae66c378fb07a0d 100644 (file)
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -19,6 +19,12 @@ linkgit:git-diff[1].
 
 OPTIONS
 -------
+-d::
+--dir-diff::
+       Copy the modified files to a temporary location and perform
+       a directory diff on them. This mode never prompts before
+       launching the diff tool.
+
 -y::
 --no-prompt::
        Do not prompt before launching a diff tool.
@@ -30,11 +36,9 @@ OPTIONS
 
 -t <tool>::
 --tool=<tool>::
-       Use the diff tool specified by <tool>.
-       Valid diff tools are:
-       araxis, bc3, deltawalker, diffuse, emerge, ecmerge, gvimdiff,
-       kdiff3, kompare, meld, opendiff, p4merge, tkdiff, vimdiff and
-       xxdiff.
+       Use the diff tool specified by <tool>.  Valid values include
+       emerge, kompare, meld, and vimdiff. Run `git difftool --tool-help`
+       for the list of valid <tool> settings.
 +
 If a diff tool is not specified, 'git difftool'
 will use the configuration variable `diff.tool`.  If the
@@ -62,6 +66,9 @@ of the diff post-image.  `$MERGED` is the name of the file which is
 being compared. `$BASE` is provided for compatibility
 with custom merge tool commands and has the same value as `$MERGED`.
 
+--tool-help::
+       Print a list of diff tools that may be used with `--tool`.
+
 -x <command>::
 --extcmd=<command>::
        Specify a custom command for viewing diffs.