Couple of minor changes to use StringBuilder.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3690 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/filesys/ftp/FTPSrvSession.java

@@ -1320,11 +1320,10 @@ public class FTPSrvSession extends SrvSession implements Runnable
 
                 // Output the file information to the client
 
-                StringBuffer str = new StringBuffer(256);
+                StringBuilder str = new StringBuilder(256);
 
                 for (FileInfo finfo : files)
                 {
-
                     // Build the output record
 
                     str.setLength(0);