X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=Documentation%2Fgit-diff-tree.txt;h=5d48664e624f59e0df16121ed67d84939f6d2a31;hb=106db883b791efb7f39f3b2f8553236ba792a89e;hp=7d41a0f6cdd9e555db4c097f6ff477884fd797be;hpb=b1889c36d85514e5e70462294c561a02c2edfe2b;p=git.git

diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index 7d41a0f6c..5d48664e6 100644
--- 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
 -------
@@ -49,34 +49,43 @@ include::diff-options.txt[]
 --stdin::
 	When '--stdin' is specified, the command does not take
 	<tree-ish> arguments from the command line.  Instead, it
-	reads either one <commit> or a pair of <tree-ish>
-	separated with a single space from its standard input.
+	reads lines containing either two <tree>, one <commit>, or a
+	list of <commit> from its standard input.  (Use a single space
+	as separator.)
 +
-When a single commit is given on one line of such input, it compares
-the commit with its parents.  The following flags further affects its
-behavior.  This does not apply to the case where two <tree-ish>
-separated with a single space are given.
+When two trees are given, it compares the first tree with the second.
+When a single commit is given, it compares the commit with its
+parents.  The remaining commits, when given, are used as if they are
+parents of the first commit.
++
+When comparing two trees, the ID of both trees (separated by a space
+and terminated by a newline) is printed before the difference.  When
+comparing commits, the ID of the first (or only) commit, followed by a
+newline, is printed.
++
+The following flags further affects the behavior when comparing
+commits (but not trees).
 
 -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 +102,11 @@ 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