ui-diff: show /dev/null as filename for add/delete

The diff headers showed an invalid filename when a patch created or
deleted a file. Fix it.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

diff --git a/ui-diff.c b/ui-diff.c
index 7ec5701a4ea668990572b3088cd004f7d2dfc7bd..999b6f39f9f2aced54ecb3622ee5db211559343c 100644 (file)
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -35,7 +35,10 @@ static void header(unsigned char *sha1, char *path1,
                   unsigned char *sha2, char *path2)
 {
        char *abbrev1, *abbrev2;
-
+       if (is_null_sha1(sha1))
+               path1 = "dev/null";
+       if (is_null_sha1(sha2))
+               path2 = "dev/null";
        html("<tr><td>");
        html("<div class='head'>");
        html("diff --git a/");