unpack-trees: allow Porcelain to give different error messages

diff --git a/remote.h b/remote.h
index 75d006b6deb2ded726df2c1749aa63dec69e34d2..2ee83a33b3bb7ddaa5bb33493dacfbeca4ae5dbe 100644 (file)
--- a/remote.h
+++ b/remote.h
@@ -54,6 +54,8 @@ struct refspec {
 
 struct ref *alloc_ref(unsigned namelen);
 
+struct ref *alloc_ref_from_str(const char* str);
+
 struct ref *copy_ref_list(const struct ref *ref);
 
 int check_ref_type(const struct ref *ref, int flags);