Open pipe client with anonymous security
Open pipe client with anonymous security

This ensures that the pipe server cannot impersonate or even identify
the user that has connected to the pipe. This is a good default to
prevent malicious squatting on a named pipe name.

Signed-off-by: John Starks <4f08c47f7080d055a9777fa88698f74c617e54d1@microsoft.com>

microsoft/go-winio,Microsoft/go-winio