rpm: fix regression in sr_rpm_package_uniq

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Michal Toman <mtoman@redhat.com>
abrt: make dso_list parse the correct install time

Previously, all resulting packages had the install time of the last
package in dso_list.

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Michal Toman <mtoman@redhat.com>