[dev.cc] runtime: two missed references to "M stack"
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/177940043
diff --git a/src/runtime/panic.go b/src/runtime/panic.go
index 8929467..95e780b 100644
--- a/src/runtime/panic.go
+++ b/src/runtime/panic.go
@@ -162,7 +162,7 @@
// Allocate a Defer, usually using per-P pool.
// Each defer must be released with freedefer.
-// Note: runs on M stack
+// Note: runs on g0 stack
func newdefer(siz int32) *_defer {
var d *_defer
sc := deferclass(uintptr(siz))
