remove trailing whitespaces from source files

filters/html-converters/resources/markdown.pl

@@ -125,7 +125,7 @@ unless ($@) {
 			my $ctx  = shift;
 			my $raw  = 0;
 		    if (defined $ctx) {
-		    	my $output = $ctx->stash('markdown_output'); 
+				my $output = $ctx->stash('markdown_output');
 				if (defined $output  &&  $output =~ m/^html/i) {
 					$g_empty_element_suffix = ">";
 					$ctx->stash('markdown_output', '');
@@ -1287,7 +1287,7 @@ sub _EncodeCode {
 	{
 		no warnings 'once';
     	if (defined($blosxom::version)) {
-    		s/\$/$/g;	
+		s/\$/$/g;
     	}
     }