[LUNI] How to find what rpm created a user?

[jvalkiunas at flywheelcorporation.com]

Some rpms create users with no home directories.  How could you find out
which rpm created which user?

ie: /etc/passwd ->
nscd
vsca
ident

The names imply what rpm they're from, but I was wondering if there was a
slicker way of using rpm to find out.

Ideally a rpm -qf /home/userdirectory would work, but these users don't
have home directories.


Thanks,

-Jonas