removed ztar support in shutil.make_archive
diff --git a/Doc/library/shutil.rst b/Doc/library/shutil.rst
index 23f03e7..0b343d4 100644
--- a/Doc/library/shutil.rst
+++ b/Doc/library/shutil.rst
@@ -249,7 +249,7 @@
 
    *base_name* is the name of the file to create, including the path, minus
    any format-specific extension. *format* is the archive format: one of
-   "zip", "tar", "ztar", "bztar" or "gztar".
+   "zip", "tar", "bztar" or "gztar".
 
    *root_dir* is a directory that will be the root directory of the
    archive; ie. we typically chdir into *root_dir* before creating the
@@ -276,7 +276,6 @@
 
    - *gztar*: gzip'ed tar-file
    - *bztar*: bzip2'ed tar-file
-   - *ztar*: compressed tar file
    - *tar*: uncompressed tar file
    - *zip*: ZIP file