Issue #5729: json.dumps to support using '\t' as an indent string
diff --git a/Doc/library/json.rst b/Doc/library/json.rst
index a26001d..b0703a4 100644
--- a/Doc/library/json.rst
+++ b/Doc/library/json.rst
@@ -135,10 +135,12 @@
``inf``, ``-inf``) in strict compliance of the JSON specification, instead of
using the JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``).
- If *indent* is a non-negative integer, then JSON array elements and object
- members will be pretty-printed with that indent level. An indent level of 0
- will only insert newlines. ``None`` (the default) selects the most compact
- representation.
+ If *indent* is a non-negative integer or string, then JSON array elements and
+ object members will be pretty-printed with that indent level. An indent level
+ of 0 or ``""`` will only insert newlines. ``None`` (the default) selects the
+ most compact representation. Using an integer indent indents that many spaces
+ per level. If *indent* is a string (such at '\t'), that string is used to indent
+ each level.
If *separators* is an ``(item_separator, dict_separator)`` tuple, then it
will be used instead of the default ``(', ', ': ')`` separators. ``(',',