PROBLEM: (Patch ID: OSF415-410079) ******** vipw calls /usr/sbin/mkpasswd to rebuild the hashed password database files by building the new files from scratch. This causes a problem when there is a large number of users in /etc/passwd. This version of vipw now issues a warning that /usr/sbin/usermod should be used if there are approximately 500 or more user entries in /etc/passwd.