doc: Add comment explaining WorldSid usage in build_data_writer.ps1

We use WorldSid because the 'Everyone' name is locale-dependent.

Author: rickeylev

python/private/build_data_writer.ps1

@@ -21,6 +21,7 @@ $Utf8NoBom = New-Object System.Text.UTF8Encoding $False
 [System.IO.File]::WriteAllLines($OutputPath, $Lines, $Utf8NoBom)
 
 $Acl = Get-Acl $OutputPath
+# We use WorldSid because the "Everyone" name is locale-dependent.
 $EveryoneSid = New-Object System.Security.Principal.SecurityIdentifier(
     [System.Security.Principal.WellKnownSidType]::WorldSid,
     $null