git-diff -B output fix. v1.4.2.2

Geert noticed that complete rewrite diff missed the usual a/ and b/
leading paths.  Pickaxe says it never worked, ever.

Embarrassing.

Signed-off-by: Junio C Hamano <junkio@cox.net>
(cherry picked from bc1a5807575b2f34538d4158834da6524a4fc1f7 commit)

1 files changed, 1 insertions, 1 deletions

diff --git a/diff.c b/diff.c
index b3b1781a9c..5dbc913a96 100644
--- a/diff.c
+++ b/diff.c
@@ -333,7 +333,7 @@ static void emit_rewrite_diff(const char *name_a,
         diff_populate_filespec(two, 0);
         lc_a = count_lines(one->data, one->size);
         lc_b = count_lines(two->data, two->size);
-        printf("--- %s\n+++ %s\n@@ -", name_a, name_b);
+        printf("--- a/%s\n+++ b/%s\n@@ -", name_a, name_b);
         print_line_count(lc_a);
         printf(" +");
         print_line_count(lc_b);