Merge pull request #3 from xkr47/patch-1

Use SIGINT instead of SIGHUP to kill child

src/index.js

@@ -38,7 +38,7 @@ class Worker {
 	}
 
 	terminate () {
-		this.child.kill("SIGHUP");
+		this.child.kill("SIGINT");
 	}
 }