Big patch to add, document, and test LC_COLLATE support.
\n not necessarily lt ' '.
# check "" interpretation
$x = "\n";
-if ($x lt ' ') {print "ok 1\n";} else {print "not ok 1\n";}
+if ($x eq chr(10)) {print "ok 1\n";} else {print "not ok 1\n";}
# check `` processing