test-tool: handle the `-C <directory>` option just like `git`

diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h
index a563df49bf086b92eb24b3f90f6194eed059de81..25abed1cf2acc9e84cf1ed78eebe97c7c4d728ca 100644 (file)
--- a/t/helper/test-tool.h
+++ b/t/helper/test-tool.h
@@ -16,6 +16,7 @@ int cmd__dump_split_index(int argc, const char **argv);
 int cmd__dump_untracked_cache(int argc, const char **argv);
 int cmd__example_decorate(int argc, const char **argv);
 int cmd__genrandom(int argc, const char **argv);
+int cmd__genzeros(int argc, const char **argv);
 int cmd__hashmap(int argc, const char **argv);
 int cmd__hash_speed(int argc, const char **argv);
 int cmd__index_version(int argc, const char **argv);