Remove whitespace from Add-RegistrySettings function

White space is not allowed before the Powershell string terminator.
Fixed formatting.

parts/windowsProvision.ps1

@@ -375,7 +375,7 @@ function Add-RegistrySettings {
     :SETUP
     reg add HKLM\SYSTEM\CurrentControlSet\Services\sgx_lc_msr\Parameters /v SGX_Launch_Config_Optin /t REG_DWORD /d 0x01
     SHUTDOWN -r -t 10
-    "@
+"@
     $CurrentDir = (Get-Location).Path
     $CMDFileName = "$CurrentDir\AddRegistry.cmd"
     $AddingRegistryCMD | Out-File -FilePath $CMDFileName -Encoding ASCII