t/lib-submodule-update.sh: fix test ignoring ignored files in submodules

diff --git a/bisect.h b/bisect.h
index c535e6d12e434a36569c18da81ea9cf916393363..a5d9248a47675194e7e0d16aed37018cbb67eb33 100644 (file)
--- a/bisect.h
+++ b/bisect.h
@@ -34,4 +34,6 @@ extern int estimate_bisect_steps(int all);
 
 extern void read_bisect_terms(const char **bad, const char **good);
 
+extern int bisect_clean_state(void);
+
 #endif