try moving quotes

Author: jacdavi

m365/image/Dockerfile

@@ -27,7 +27,7 @@ COPY run_container.ps1 .
 ENV OPA_PATH="C:\app\opa_windows_amd64.exe"
 RUN $ProgressPreference = 'SilentlyContinue'; Invoke-WebRequest -Uri https://openpolicyagent.org/downloads/v$($Env:OPA_VERSION)/opa_windows_amd64.exe -OutFile $Env:OPA_PATH -UseBasicParsing
 RUN if ((Get-FileHash $Env:OPA_PATH -Algorithm SHA256).Hash -ne ([System.Text.Encoding]::ASCII.GetString((Invoke-WebRequest -Uri https://openpolicyagent.org/downloads/v$($Env:OPA_VERSION)/opa_windows_amd64.exe.sha256 -UseBasicParsing).Content) -split ' ')[0]) { exit 1 }
-RUN cmd /c icacls.exe $env:OPA_PATH /grant 'User Manager\ContainerUser':RX
+RUN icacls $env:OPA_PATH /grant "User Manager"\ContainerUser:RX
 USER ContainerUser
 
 CMD [ "powershell", ".\\run_container.ps1" ]