filter-branch: handle filenames that need quoting

The command used a very old fashioned construct to extract
filenames out of diff-index and ended up corrupting the output.
We can simply use --name-only and pipe into --stdin mode of
update-index.  It's been like that for the past 2 years or so
since a94d994 (update-index: work with c-quoted name).

Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-filter-branch.sh

@@ -276,10 +276,11 @@ while read commit parents; do
 		eval "$filter_tree" < /dev/null ||
 			die "tree filter failed: $filter_tree"
 
-		git diff-index -r $commit | cut -f 2- | tr '\012' '\000' | \
+		(
-			xargs -0 git update-index --add --replace --remove
+			git diff-index -r --name-only $commit
-		git ls-files -z --others | \
+			git ls-files --others
-			xargs -0 git update-index --add --replace --remove
+		) |
+		git update-index --add --replace --remove --stdin
 	fi
 
 	eval "$filter_index" < /dev/null ||

t/t7003-filter-branch.sh

@@ -165,4 +165,18 @@ test_expect_success '"map" works in commit filter' '
 	git rev-parse --verify master
 '
 
+test_expect_success 'Name needing quotes' '
+
+	git checkout -b rerere A &&
+	mkdir foo &&
+	name="れれれ" &&
+	>foo/$name &&
+	git add foo &&
+	git commit -m "Adding a file" &&
+	git filter-branch --tree-filter "rm -fr foo" &&
+	! git ls-files --error-unmatch "foo/$name" &&
+	test $(git rev-parse --verify rerere) != $(git rev-parse --verify A)
+
+'
+
 test_done