commit: allow --amend to reuse message from another commit

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 228ccaf10ab6bf7e4a3909d31ac31afbd2361d8c..5d22b7b58c5950fe70d09e0bb7384179ae30220f 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -1,5 +1,27 @@
+// Please don't remove this comment as asciidoc behaves badly when
+// the first non-empty line is ifdef/ifndef. The symptom is that
+// without this comment the <git-diff-core> attribute conditionally
+// defined below ends up being defined unconditionally.
+// Last checked with asciidoc 7.0.2.
+
+ifndef::git-format-patch[]
+ifndef::git-diff[]
+ifndef::git-log[]
+:git-diff-core: 1
+endif::git-log[]
+endif::git-diff[]
+endif::git-format-patch[]
+
+ifdef::git-format-patch[]
 -p::
-       Generate patch (see section on generating patches)
+       Generate patches without diffstat.
+endif::git-format-patch[]
+
+ifndef::git-format-patch[]
+-p::
+       Generate patch (see section on generating patches).
+       {git-diff? This is the default.}
+endif::git-format-patch[]
 
 -u::
        Synonym for "-p".
@@ -13,6 +35,7 @@
 
 --raw::
        Generate the raw format.
+       {git-diff-core? This is the default.}
 
 --patch-with-raw::
        Synonym for "-p --raw".
@@ -41,6 +64,7 @@
 
 --patch-with-stat::
        Synonym for "-p --stat".
+       {git-format-patch? This is the default.}
 
 -z::
        NUL-line termination on output.  This affects the --raw
@@ -151,19 +175,19 @@
        Shorthand for "--text".
 
 --ignore-space-at-eol::
-       Ignore changes in white spaces at EOL.
+       Ignore changes in whitespace at EOL.
 
 --ignore-space-change::
-       Ignore changes in amount of white space.  This ignores white
-       space at line end, and consider all other sequences of one or
-       more white space characters to be equivalent.
+       Ignore changes in amount of whitespace.  This ignores whitespace
+       at line end, and considers all other sequences of one or
+       more whitespace characters to be equivalent.
 
 -b::
        Shorthand for "--ignore-space-change".
 
 --ignore-all-space::
-       Ignore white space when comparing lines.  This ignores
-       difference even if one line has white space where the other
+       Ignore whitespace when comparing lines.  This ignores
+       differences even if one line has whitespace where the other
        line has none.
 
 -w::
@@ -179,8 +203,8 @@
 
 --ext-diff::
        Allow an external diff helper to be executed. If you set an
-       external diff driver with gitlink:gitattributes(5), you need
-       to use this option with gitlink:git-log(1) and friends.
+       external diff driver with gitlink:gitattributes[5], you need
+       to use this option with gitlink:git-log[1] and friends.
 
 --no-ext-diff::
        Disallow external diff drivers.