add cli reference

Author: matthid

src/app/Fake.DotNet.FSFormatting/Fake.DotNet.FSFormatting.fsproj

@@ -18,6 +18,7 @@
   <ItemGroup>
     <ProjectReference Include="..\Fake.Core.Process\Fake.Core.Process.fsproj" />
     <ProjectReference Include="..\Fake.IO.FileSystem\Fake.IO.FileSystem.fsproj" />
+    <ProjectReference Include="..\Fake.DotNet.Cli\Fake.DotNet.Cli.fsproj" />
   </ItemGroup>
   <Import Project="..\..\..\.paket\Paket.Restore.targets" />
 </Project>