HDFS-14692. Upload button should not encode complete url. Contributed by Lokesh Jain.

Signed-off-by: Wei-Chiu Chuang <weichiu@apache.org>
(cherry picked from commit 954ff36360e083010f395cb9d3bd46701417e7b7)

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/explorer.js

@@ -442,8 +442,7 @@
     for(var i = 0; i < $('#modal-upload-file-input').prop('files').length; i++) {
       (function() {
         var file = $('#modal-upload-file-input').prop('files')[i];
-        var url = '/webhdfs/v1' + current_directory;
-        url = encode_path(append_path(url, file.name));
+        var url = '/webhdfs/v1' + encode_path(append_path(current_directory, file.name));
         url += '?op=CREATE&noredirect=true';
         files.push( { file: file } )
         files[i].request = $.ajax({