Delete trailing whitespaces on rename and mkdir

Whitespace at end of filename cause errors while accessing those files
and dirs via WebDAV (e.g. Nautilus, Caja, etc). This patch tries to
avoid creation of such nodes.

Author: sespivak

core/src/plugins/access.fs/FsAccessDriver.php

@@ -1114,6 +1114,7 @@ public function switchAction(ServerRequestInterface &$request, ResponseInterface
                     $this->filterUserSelectionToHidden($ctx, [$destNode->getLabel()]);
                 }else if(isSet($httpVars["filename_new"])){
                     $filename_new = InputFilter::decodeSecureMagic($httpVars["filename_new"]);
+                    $filename_new = rtrim($filename_new);
                     $this->filterUserSelectionToHidden($ctx, [$filename_new]);
                 }
                 $renamedNode = $this->rename($originalNode, $destNode, $filename_new);
@@ -1148,6 +1149,7 @@ public function switchAction(ServerRequestInterface &$request, ResponseInterface
                     $parentDir = PathUtils::forwardSlashDirname($newDirPath);
                     $basename = PathUtils::forwardSlashBasename($newDirPath);
                     $basename = substr($basename, 0, $max_length);
+                    $basename = rtrim($basename);
                     $this->filterUserSelectionToHidden($ctx, [$basename]);
                     $parentNode = $selection->nodeForPath($parentDir);
                     try{
@@ -2545,4 +2547,4 @@ public function makeSharedRepositoryOptions(ContextInterface $ctx, $httpVars)
     }
 
 
-}
+}