t7800: readlink may not be available

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 19f78a7d5cca0c4a08681605d31a57158a869298..3ad6404dbcf2915721ac963085bbc0269c1d7312 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -23,9 +23,16 @@ ifndef::git-format-patch[]
 -u::
 --patch::
        Generate patch (see section on generating patches).
-       {git-diff? This is the default.}
+ifdef::git-diff[]
+       This is the default.
+endif::git-diff[]
 endif::git-format-patch[]
 
+-s::
+--no-patch::
+       Suppress diff output. Useful for commands like `git show` that
+       show the patch by default, or to cancel the effect of `--patch`.
+
 -U<n>::
 --unified=<n>::
        Generate diffs with <n> lines of context instead of
@@ -36,8 +43,19 @@ endif::git-format-patch[]
 
 ifndef::git-format-patch[]
 --raw::
-       Generate the raw format.
-       {git-diff-core? This is the default.}
+ifndef::git-log[]
+       Generate the diff in raw format.
+ifdef::git-diff-core[]
+       This is the default.
+endif::git-diff-core[]
+endif::git-log[]
+ifdef::git-log[]
+       For each commit, show a summary of changes using the raw diff
+       format. See the "RAW OUTPUT FORMAT" section of
+       linkgit:git-diff[1]. This is different from showing the log
+       itself in raw format, which you can achieve with
+       `--format=raw`.
+endif::git-log[]
 endif::git-format-patch[]
 
 ifndef::git-format-patch[]
@@ -333,7 +351,7 @@ endif::git-log[]
        a fraction, with a decimal point before it.  I.e., `-M5` becomes
        0.5, and is thus the same as `-M50%`.  Similarly, `-M05` is
        the same as `-M5%`.  To limit detection to exact renames, use
-       `-M100%`.
+       `-M100%`.  The default similarity index is 50%.
 
 -C[<n>]::
 --find-copies[=<n>]::
@@ -353,7 +371,7 @@ endif::git-log[]
 --irreversible-delete::
        Omit the preimage for deletes, i.e. print only the header but not
        the diff between the preimage and `/dev/null`. The resulting patch
-       is not meant to be applied with `patch` nor `git apply`; this is
+       is not meant to be applied with `patch` or `git apply`; this is
        solely for people who want to just concentrate on reviewing the
        text after the change. In addition, the output obviously lack
        enough information to apply such a patch in reverse, even manually,
@@ -427,6 +445,9 @@ endif::git-format-patch[]
 -O<orderfile>::
        Output the patch in the order specified in the
        <orderfile>, which has one shell glob pattern per line.
+       This overrides the `diff.orderFile` configuration variable
+       (see linkgit:git-config[1]).  To cancel `diff.orderFile`,
+       use `-O/dev/null`.
 
 ifndef::git-format-patch[]
 -R::