Error while running Lua script from redis client
<p>I have the "Hello World" program in Lua script.
I am trying to call the script from (Chocolatey) Redis client. 
I keep getting this error
(error) ERR Error compiling script (new function): user_script:1: function argument expected near '.'</p>

<p><strong>Redis Script:  "hello.lua"</strong></p>

<pre><code>local msg = "Hello, world!"
return msg
</code></pre>

<p><strong>Chocolatey Redis Client:</strong></p>

<pre><code>127.0.0.1:6379&gt; EVAL "D:\hello.lua" 0
</code></pre>

<p><strong>Error Message</strong></p>

<pre><code>(error) ERR Error compiling script (new function): user_script:1: function argument expected near '.'
</code></pre>