better switch

calc.go

@@ -370,9 +370,7 @@ func (c *Calc) EvalItem(item string) error {
 	}
 
 	switch item {
-	case "?":
-		fallthrough
-	case "help":
+	case "?", "help":
 		c.PrintHelp()
 
 	default:

interpreter.go

@@ -116,9 +116,7 @@ func (i *Interpreter) CallLuaFunc(funcname string, items []float64) (float64, er
 		funcname, LuaFuncs[funcname].numargs))
 
 	switch LuaFuncs[funcname].numargs {
-	case 0:
-		fallthrough
-	case 1:
+	case 0, 1:
 		// 1 arg variant
 		if err := LuaInterpreter.CallByParam(lua.P{
 			Fn:      LuaInterpreter.GetGlobal(funcname),