[munin-users] specfile fixes for RedHat/Fedora

[Ingvar H. <in...@li...>]

Here are a small patch to sync the RedHat specfile with 1.2.2. The
changes are not heavily tested, but are are cosmetic, and at least the
node seems to work fine fedora core 2. Should probably build fine on
any Fedora/RHEL3+ machine.

Please apply to the 1.2.x branch, and eventually to attic.

Ingvar