parse-options: adjust `parse_opt_unknown_cb()`s declared return type

diff --git a/repository.h b/repository.h
index 8981649d43736ee283fcd23cd3185288252d5357..4fb6a5885f794dea9ff7a1ecf37f27bc34e4d218 100644 (file)
--- a/repository.h
+++ b/repository.h
@@ -92,6 +92,9 @@ struct repository {
        /* Repository's current hash algorithm, as serialized on disk. */
        const struct git_hash_algo *hash_algo;
 
+       /* A unique-id for tracing purposes. */
+       int trace2_repo_id;
+
        /* Configurations */
 
        /* Indicate if a repository has a different 'commondir' from 'gitdir' */