No use for realpath anymore.

plugins/FeedsCSVParser.inc

@@ -13,7 +13,7 @@ class FeedsCSVParser extends FeedsParser {
 
     // Load and configure parser.
     feeds_include_library('ParserCSV.inc', 'ParserCSV');
-    $iterator = new ParserCSVIterator(realpath($batch->getFilePath()));
+    $iterator = new ParserCSVIterator($batch->getFilePath());
     $source_config = $source->getConfigFor($this);
     $parser = new ParserCSV();
     $delimiter = $source_config['delimiter'] == 'TAB' ? "\t" : $source_config['delimiter'];