don't put whitespace into links

The end of the function phptemplate_linksnew puts a newline at the end of each of the primary links.
I've adapted this to do the secondary links too, and the whitespace causes layout issues (an extra gap between elements that isn't accounted by css and makes each item appear off-centre if you put a border in.

Change this:
$output .= "

\n";
to this:
$output .= "

";
to fix.