runtime: gofmt

Fixes #9339

Change-Id: I22faf2593cb73f42612c2c2bfe38de001fb2746b
Reviewed-on: https://go-review.googlesource.com/1630Reviewed-by: Andrew Gerrand <adg@golang.org>

src/runtime/debug/heapdump_test.go

@@ -32,13 +32,12 @@ func TestWriteHeapDumpNonempty(t *testing.T) {
 	}
 }
 
-
 type Obj struct {
-       x, y int
+	x, y int
 }
 
 func objfin(x *Obj) {
-       println("finalized", x)
+	println("finalized", x)
 }
 
 func TestWriteHeapDumpFinalizers(t *testing.T) {

src/runtime/malloc2.go

@@ -477,7 +477,7 @@ type finblock struct {
 	next    *finblock
 	cnt     int32
 	_       int32
-	fin     [(_FinBlockSize-2*ptrSize-2*4)/unsafe.Sizeof(finalizer{})]finalizer
+	fin     [(_FinBlockSize - 2*ptrSize - 2*4) / unsafe.Sizeof(finalizer{})]finalizer
 }
 
 // Information from the compiler about the layout of stack frames.