BUG #5430: initdb fails due to permissions of /usr/share/pgsql

The following bug has been logged online:

Bug reference: 5430
Logged by: Jamie Strachan
Email address: frostfreek(at)yahoo(dot)com
PostgreSQL version: 8.4.3-2PGDG.el4
Operating system: CentOS 4
Description: initdb fails due to permissions of /usr/share/pgsql
Details:

Hello,

Downloaded the following RPM:
http://yum.pgsqlrpms.org/8.4/redhat/rhel-4-i386/postgresql-server-8.4.3-2PGD
G.el4.i386.rpm

for my CentOS 4 install.

service postgresql initdb fails with no error message.

So, I su'd to postgres, and ran

initdb --pgdata=/var/lib/pgsql/data --auth=ident
which is what service postgresql initdb does.
This command failed, with the error message:

could not open directory "/usr/share/pgsql/timezonesets"

I did a
chown -R postgres:postgres /usr/share/pgsql
and then it worked fine.

Using rpm2cpio {file} | cpio -tv
I see:
drwxr-xr-x 6 root root 0 Mar 17 16:21 ./usr/share/pgsql
which is fine, however there is no specific entry for
/usr/share/timezone.
The post-install script doesn't seem to fix it, either.