[PATCH] Fix quick-install-doc

[Johannes Schindelin <Johannes.Schindelin@gmx.de>]

The recent work-tree cleanups exposed that the install-doc-quick
script was relying on a strange behaviour predating the work-tree
series: when setting a GIT_DIR, it was assumed that the current
working directory is the root of the working tree.

The recent work-tree series changed that behaviour: now that you can
set the work tree explicitely, the work tree root defaults to
$GIT_DIR/.. if $GIT_DIR has a /.git suffix when that is a parent
directory of the current working directory.

Noticed by Mark Levedahl. Diagnosed by Junio Hamano.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---

	Junio, I did it slightly differently from what I said on IRC: 
	setting the work-tree with "--work-tree" does not work as 
	expected.  Will fix.

 Documentation/install-doc-quick.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/Documentation/install-doc-quick.sh b/Documentation/install-doc-quick.sh
index e6601bd..5c8b604 100755
--- a/Documentation/install-doc-quick.sh
+++ b/Documentation/install-doc-quick.sh
@@ -19,7 +19,7 @@ GIT_INDEX_FILE=`pwd`/.quick-doc.index
 export GIT_INDEX_FILE
 rm -f "$GIT_INDEX_FILE"
 git read-tree $head
-git checkout-index -a -f --prefix="$mandir"/
+(cd "$mandir"; git checkout-index -a -f)
 
 if test -n "$GZ"; then
 	cd "$mandir"
-- 
1.5.3.rc4.1.g7805