Fix bug with MWTemplate::Parse

The slurp after the template name needs to be non-greedy so it ends at the first }}.
Now that I think about it,
this will break if the template invocation has template/variable calls within it

MWTemplate.pm

@@ -9,9 +9,7 @@ my $DEBUG = 1;
 
 sub Parse($input, $template_name)
 {
-	# say STDERR "Looking for $template_name in:";
+	my ($contents) = $input =~ /\{\{ \s* $template_name \s* \| (.*?) \}\}/sx;
-	# say STDERR $input;
-	my ($contents) = $input =~ /\{\{ \s* $template_name \s* \| (.*) \}\}/sx;
 	return 0 unless $contents;
 	my @params = split /\|/, $contents;
 	my @positional_params;