runtime: fix out of date comment
scanobject no longer returns the new wbuf.
Change-Id: I0da335ae5cd7ef7ea0e0fa965cf0e9f3a650d0e6
Reviewed-on: https://go-review.googlesource.com/7505
Reviewed-by: Rick Hudson <rlh@golang.org>
diff --git a/src/runtime/mgcmark.go b/src/runtime/mgcmark.go
index ec189ef..5d3a9ef 100644
--- a/src/runtime/mgcmark.go
+++ b/src/runtime/mgcmark.go
@@ -408,7 +408,6 @@
}
// Scan the object b of size n bytes, adding pointers to wbuf.
-// Return possibly new wbuf to use.
// If ptrmask != nil, it specifies where pointers are in b.
// If ptrmask == nil, the GC bitmap should be consulted.
// In this case, n may be an overestimate of the size; the GC bitmap
