branch: show targets of deleted symrefs, not sha1s

git branch reports the abbreviated hash of the head commit of
a deleted branch to make it easier for a user to undo the
operation.  For symref branches this doesn't help.  Print the
symref target instead for them.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/branch.c

@@ -251,15 +251,18 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
 			      : _("Error deleting branch '%s'"),
 			      bname.buf);
 			ret = 1;
-		} else {
-			if (!quiet)
-				printf(remote_branch
-				       ? _("Deleted remote branch %s (was %s).\n")
-				       : _("Deleted branch %s (was %s).\n"),
-				       bname.buf,
-				       find_unique_abbrev(sha1, DEFAULT_ABBREV));
-			delete_branch_config(bname.buf);
+			continue;
+		}
+		if (!quiet) {
+			printf(remote_branch
+			       ? _("Deleted remote branch %s (was %s).\n")
+			       : _("Deleted branch %s (was %s).\n"),
+			       bname.buf,
+			       (flags & REF_ISSYMREF)
+			       ? target
+			       : find_unique_abbrev(sha1, DEFAULT_ABBREV));
 		}
+		delete_branch_config(bname.buf);
 	}
 
 	free(name);

t/t3200-branch.sh

@@ -265,8 +265,7 @@ test_expect_success 'config information was renamed, too' \
 test_expect_success 'deleting a symref' '
 	git branch target &&
 	git symbolic-ref refs/heads/symref refs/heads/target &&
-	sha1=$(git rev-parse symref | cut -c 1-7) &&
-	echo "Deleted branch symref (was $sha1)." >expect &&
+	echo "Deleted branch symref (was refs/heads/target)." >expect &&
 	git branch -d symref >actual &&
 	test_path_is_file .git/refs/heads/target &&
 	test_path_is_missing .git/refs/heads/symref &&
@@ -276,7 +275,7 @@ test_expect_success 'deleting a symref' '
 test_expect_success 'deleting a dangling symref' '
 	git symbolic-ref refs/heads/dangling-symref nowhere &&
 	test_path_is_file .git/refs/heads/dangling-symref &&
-	echo "Deleted branch dangling-symref (was 0000000)." >expect &&
+	echo "Deleted branch dangling-symref (was nowhere)." >expect &&
 	git branch -d dangling-symref >actual &&
 	test_path_is_missing .git/refs/heads/dangling-symref &&
 	test_i18ncmp expect actual