Merge branch 'dl/diff-merge-base'
"git diff --merge-base" documentation has been updated.
* dl/diff-merge-base:
git-diff: fix missing --merge-base docs
diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt
index 7f4c8a8..6236c75 100644
--- a/Documentation/git-diff.txt
+++ b/Documentation/git-diff.txt
@@ -51,16 +51,20 @@
--staged is a synonym of --cached.
+
If --merge-base is given, instead of using <commit>, use the merge base
-of <commit> and HEAD. `git diff --merge-base A` is equivalent to
-`git diff $(git merge-base A HEAD)`.
+of <commit> and HEAD. `git diff --cached --merge-base A` is equivalent to
+`git diff --cached $(git merge-base A HEAD)`.
-'git diff' [<options>] <commit> [--] [<path>...]::
+'git diff' [<options>] [--merge-base] <commit> [--] [<path>...]::
This form is to view the changes you have in your
working tree relative to the named <commit>. You can
use HEAD to compare it with the latest commit, or a
branch name to compare with the tip of a different
branch.
++
+If --merge-base is given, instead of using <commit>, use the merge base
+of <commit> and HEAD. `git diff --merge-base A` is equivalent to
+`git diff $(git merge-base A HEAD)`.
'git diff' [<options>] [--merge-base] <commit> <commit> [--] [<path>...]::
diff --git a/builtin/diff.c b/builtin/diff.c
index 2d87c37..dd8ce68 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -26,8 +26,8 @@
static const char builtin_diff_usage[] =
"git diff [<options>] [<commit>] [--] [<path>...]\n"
-" or: git diff [<options>] --cached [<commit>] [--] [<path>...]\n"
-" or: git diff [<options>] <commit> [--merge-base] [<commit>...] <commit> [--] [<path>...]\n"
+" or: git diff [<options>] --cached [--merge-base] [<commit>] [--] [<path>...]\n"
+" or: git diff [<options>] [--merge-base] <commit> [<commit>...] <commit> [--] [<path>...]\n"
" or: git diff [<options>] <commit>...<commit>] [--] [<path>...]\n"
" or: git diff [<options>] <blob> <blob>]\n"
" or: git diff [<options>] --no-index [--] <path> <path>]\n"
