git-describe: use find_unique_abbrev()

Just in case 8 hexadecimal digits are not enough.  We could use
shorter default if we wanted to.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/describe.c b/describe.c
index e1b6588..ba49d00 100644 (file)
--- a/describe.c
+++ b/describe.c
@@ -95,7 +95,8 @@ static void describe(struct commit *cmit)
                struct commit *c = pop_most_recent_commit(&list, SEEN);
                n = match(c);
                if (n) {
-                       printf("%s-g%.8s\n", n->path, sha1_to_hex(cmit->object.sha1));
+                       printf("%s-g%s\n", n->path,
+                              find_unique_abbrev(cmit->object.sha1, 8));
                        return;
                }
        }