Minor clean up

main.go

@@ -60,6 +60,7 @@ func main() {
 	}
 	err = worker.SendBytes(out)
 	if err != nil {
-		panic(err)
+		os.Stderr.WriteString(err.Error())
+		os.Exit(1)
 	}
 }

main.ts

@@ -20,7 +20,6 @@ function readFileSync(filename: string): string {
 }
 
 function load(argv: string[]): void {
-  console.log("Load argv", argv);
   const inputFn = argv[1];
   const source = readFileSync(inputFn);
   console.log("source", source);
@@ -37,5 +36,3 @@ V8Worker2.recv((ab: ArrayBuffer) => {
         break;
   }
 });
-
-V8Worker2.print("Hello");

util.ts

@@ -8,6 +8,8 @@ const globalEval = eval;
 // A reference to the global object.
 const _global = globalEval("this");
 
+const print = V8Worker2.print;
+
 _global["console"] = {
   // tslint:disable-next-line:no-any
   log(...args: any[]): void {
@@ -19,6 +21,6 @@ _global["console"] = {
         out.push(JSON.stringify(a));
       }
     }
-    V8Worker2.print(out.join(" "));
+    print(out.join(" "));
   }
 };