How do I modify my CSVN UID?

The UID of the existing csvn user is modified during install or upgrade of CollabNet Subversion.

See the following code sample:

$ ll /var/svn/repositories/
total 4
drwxr-xr-x 6 root root 4096 2009-01-12 16:43 test

$ id csvn
uid=501(csvn) gid=501(csvn) groups=501(csvn)

After installing the two rpm packages below 
    the csvn (uid=501) was deleted and a new on was created with (uid=503)
$ sudo rpm -Uvh CollabNet*
CollabNetSubversion-client-1.5.5-1.i386
CollabNetSubversion-server-1.5.5-1.i386

$ id csvn
uid=503(csvn) gid=503(csvn) groups=503(csvn)