runtime: remove outdated comment
LGTM=bradfitz, khr
R=khr, bradfitz
CC=golang-codereviews
https://golang.org/cl/120400043
diff --git a/src/pkg/runtime/malloc.go b/src/pkg/runtime/malloc.go
index 255778b..dedcea9 100644
--- a/src/pkg/runtime/malloc.go
+++ b/src/pkg/runtime/malloc.go
@@ -38,10 +38,9 @@
// Maximum possible heap size.
var maxMem uintptr
-// Allocate an object of at least size bytes.
-// Small objects are allocated from the per-thread cache's free lists.
+// Allocate an object of size bytes.
+// Small objects are allocated from the per-P cache's free lists.
// Large objects (> 32 kB) are allocated straight from the heap.
-// If the block will be freed with runtime·free(), typ must be nil.
func gomallocgc(size uintptr, typ *_type, flags int) unsafe.Pointer {
if size == 0 {
return unsafe.Pointer(&zeroObject)
