Issue #16714: use 'raise' exceptions, don't 'throw'.

Patch by Serhiy Storchaka.
diff --git a/Lib/xmlrpc/client.py b/Lib/xmlrpc/client.py
index 97d5aac..ec8d8e9 100644
--- a/Lib/xmlrpc/client.py
+++ b/Lib/xmlrpc/client.py
@@ -800,7 +800,7 @@
 
 class MultiCallIterator:
     """Iterates over the results of a multicall. Exceptions are
-    thrown in response to xmlrpc faults."""
+    raised in response to xmlrpc faults."""
 
     def __init__(self, results):
         self.results = results