fix misstyped passwords leaked in log files with redmine auth provider

mereth

2014-08-18 2445d4b2b80671bdcefbd4ed81f394a5249ee13d

 src/main/java/com/gitblit/GitBlitServer.java

@@ -198,7 +198,9 @@
            e.printStackTrace();
         } finally {
            try {
               is.close();
               if (is != null) {
                  is.close();
               }
            } catch (IOException e) {
               e.printStackTrace();
            }