What does ###PSLOC signify in PSD1 localization files : <p>In every almost every Microsoft project that uses localization files there is the text <code>###PSLOC</code>
before and after the block of resource strings. Here is an example:</p>

<pre><code>ConvertFrom-StringData @'
###PSLOC
MyString=This is a string.
###PSLOC
'@
</code></pre>

<p><a href="https://github.com/PowerShell/PowerShellGet/blob/acee8cc49c4f8309776f30d1553a1b14f37fb09c/PowerShellGet/PSGet.Resource.psd1#L10" rel="noreferrer">Here is an example</a> from the <a href="https://github.com/PowerShell/PowerShellGet" rel="noreferrer">PowerShellGet</a> repo.</p>

<p>I can't find any reference to this in any of the help files. I've looked in  <a href="https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_data_sections?view=powershell-5.1&amp;viewFallbackFrom=powershell-Microsoft.PowerShell.Core" rel="noreferrer">about_Data_Sections</a>, <a href="https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/convertfrom-stringdata?view=powershell-5.1" rel="noreferrer">ConvertFrom-StringData</a> and <a href="https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_script_internationalization?view=powershell-5.1&amp;viewFallbackFrom=powershell-Microsoft.PowerShell.Core" rel="noreferrer">about_Script_Internationalization</a>. And the only instances of <code>###PSLOC</code> in
the PowerShell source is in resource files like shown above.</p>

<p>More specifically I'd love to know:</p>

<ol>
<li>What does it's presence or absence tell the PowerShell engine</li>
<li>Preferably also where in the PowerShell source it is processed</li>
</ol>
