ntdll: Ignore the hole in the FILE_PIPE_WAIT_FOR_BUFFER structure passed into NtFsControlFile before writing the structure to the server.

msi: Store the number of types we queried. We were leaking these types because we didn't have the correct count.

This change also fixes weird 8-space indenting in free_merge_tables.

msi: Make sure we don't access pcchValueBuf when szBuffer is NULL, as pcchValueBuf is not required to be initialized in this case.

rpcrt4: Override inquire_auth_client for ncalrpc transport to always indicate that the connection is authenticated.

The protocol is local only and therefore encryption/decryption isn't
necessary to keep the data private, and methods are built into the
protocol for impersonating the user of the calling thread.