Running `pkg -d` in pkg-stage.sh results in multiple GB of network
traffic being written into the log files, which is less than helpful
when it comes to tracking down build failures. Remove the -d flag.
MFC after: 5 days
X-MFC-note: The code in 15 has diverged from 14, but the flag is
there, just in a different place.
Colin Percival
18721be356