Removed non-ASCII whitespace which somehow ended up in manifest/ninit.pp

manifests/init.pp contained a non-ASCII whitespace in line 617 which caused [PL#20897](http://projects.puppetlabs.com/issues/20897).
Replaced that with a proper whitespace, now the file is plain ASCII again.

Before:

    file manifests/init.pp
    manifests/init.pp: C++ source, UTF-8 Unicode text

Now:

    file manifests/init.pp
    manifests/init.pp: C++ source, ASCII text