it's already fixed in CVS

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2007-0373.html

Sysreport is deprecated in RHEL-5.1. Sosreport already includes support for
taking an lvm dump of a system using the upstream "lvmdump" script. This is a
*much* better format to have this information in than a bare tar archive of
/etc/lvm and the script has been in all RHEL releases since RHEL-4.5.

Support should be asking people to provide either an sosreport archive or an
lvmdump for problems involving lvm or the device-mapper.