dash crashes in 'test !'; fixed upstream; please merge

A local build script failed here with

+ test !
Segmentation fault (core dumped)

on the line

if test ! $BUILD_IT && test ! $CLEAN_ALL && test ! $ZIP_IT && test ! $INSTALLER

Upstream dash does not crash, and the most recent commit appears to be the fix:

commit b34499f5c851d1a70db95b56bd02eff0329d4a1a
Author: Herbert Xu <email address hidden>
Date: Fri Aug 23 21:58:55 2013 +1000

    [BUILTIN] Fixed argument parsing crash in test

Pretty please merge upsteram for both Trusty and Utopic. Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: dash 0.5.7-4ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Sep 22 08:48:18 2014
SourcePackage: dash
UpgradeStatus: No upgrade log present (probably fresh install)