[PATCH] rev-list-options.txt: update --all about detached HEAD

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

This is the document patch for f0298cf1c6 (revision walker: include a
detached HEAD in --all - 2009-01-16)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/rev-list-options.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index 5da7cf5a8d..72212ac6ec 100644
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -133,8 +133,8 @@ parents) and `--max-parents=-1` (negative numbers denote no upper limit).
 	for all following revision specifiers, up to the next `--not`.
 
 --all::
-	Pretend as if all the refs in `refs/` are listed on the
-	command line as '<commit>'.
+	Pretend as if all the refs in `refs/` (and HEAD if detached)
+	are listed on the command line as '<commit>'.
 
 --branches[=<pattern>]::
 	Pretend as if all the refs in `refs/heads` are listed
-- 
2.11.0.157.gd943d85