fix dev/atc to use 'run' subcommand
@@ -23,7 +23,7 @@ done
cd $ROOT/src/github.com/concourse/atc
# passwords are the same as user names
-atc \
+atc run \
--log-level debug \
--external-url "http://localhost:8080" \
--session-signing-key $KEYSDIR/web/session_signing_key \
