I should point out that this is not "dead code" since the existence of a
fcntl(2) read lock will prevent a write lock even if rpm itself does not expose
the API to test read locks.
That being said: your change is entirely sane, the fcntl(2) locking in RPM is
badly flawed, made worse by permission checking on 0755 root:root permissions
on /var/lib/rpm files. Until the permission problems are reasonably dealt with,
your patch is as good as anything else.
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