perf README: correct docs for 3c8f12c96c regression

diff --git a/fetch-pack.h b/fetch-pack.h
index 5b6e868802b53ca5fa59eb864199274ac538c242..43ec344d95b40c701b2fc703b4b2b1e3ff72a2d2 100644 (file)
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -43,6 +43,13 @@ struct fetch_pack_args {
        unsigned from_promisor:1;
 
        /*
+        * Attempt to fetch only the wanted objects, and not any objects
+        * referred to by them. Due to protocol limitations, extraneous
+        * objects may still be included. (When fetching non-blob
+        * objects, only blobs are excluded; when fetching a blob, the
+        * blob itself will still be sent. The client does not need to
+        * know whether a wanted object is a blob or not.)
+        *
         * If 1, fetch_pack() will also not modify any object flags.
         * This allows fetch_pack() to safely be called by any function,
         * regardless of which object flags it uses (if any).