Fixed typos in json docstrings (#161261)

Author: Zkaij

Lib/json/__init__.py

@@ -134,7 +134,7 @@ def dump(obj, fp, *, skipkeys=False, ensure_ascii=True, check_circular=True,
 
     If ``check_circular`` is false, then the circular reference check
     for container types will be skipped and a circular reference will
-    result in an ``RecursionError`` (or worse).
+    result in a ``RecursionError`` (or worse).
 
     If ``allow_nan`` is false, then it will be a ``ValueError`` to
     serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``)
@@ -198,7 +198,7 @@ def dumps(obj, *, skipkeys=False, ensure_ascii=True, check_circular=True,
 
     If ``check_circular`` is false, then the circular reference check
     for container types will be skipped and a circular reference will
-    result in an ``RecursionError`` (or worse).
+    result in a ``RecursionError`` (or worse).
 
     If ``allow_nan`` is false, then it will be a ``ValueError`` to
     serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in

Lib/json/encoder.py

@@ -118,7 +118,7 @@ def __init__(self, *, skipkeys=False, ensure_ascii=True,
 
         If check_circular is true, then lists, dicts, and custom encoded
         objects will be checked for circular references during encoding to
-        prevent an infinite recursion (which would cause an RecursionError).
+        prevent an infinite recursion (which would cause a RecursionError).
         Otherwise, no such check takes place.
 
         If allow_nan is true, then NaN, Infinity, and -Infinity will be