Merge pull request scala#132 from barryoneill/patch-1

Add parenthesis to side-effecting method

Author: eed3si9n

src/main/g8/src/main/scala/Main.scala

@@ -1,4 +1,4 @@
-@main def hello: Unit =
+@main def hello(): Unit =
   println("Hello world!")
   println(msg)