6549390 newgrp should really mean it when it says "Sorry"

[gary.wini...@sun.com]

Author: gww
Repository: /hg/onnv/onnv-gate
Latest revision: a2f4f9cfefe87bfb31c4ba79ce61015a269b2541
Total changesets: 1
Log message:
6549390 newgrp should really mean it when it says "Sorry"

Files:
        update: usr/src/cmd/newgrp/newgrp.c