Use mode 0755 by default on rc.postgresql, but if the script
already exists on the system when the package is installed
or upgraded, the existing permissions will be kept.
Thanks to Don Allen for the problem report.
For full context, see:
http://lists.slackbuilds.org/pipermail/slackbuilds-users/2010-April/005405.html
Upstream committed the 'cdfs-splice_not_sendfile.patch' patch
that we used to apply, but they didn't bump the version -
they just spun a new tarball and (of course) changed the
checksum.
