bpo-32297: Few misspellings found in Python source code comments. (#4803)

* Fix multiple typos in code comments

* Add spacing in comments (test_logging.py, test_math.py)

* Fix spaces at the beginning of comments in test_logging.py
diff --git a/Lib/xmlrpc/client.py b/Lib/xmlrpc/client.py
index 2852503..1e8bb5f 100644
--- a/Lib/xmlrpc/client.py
+++ b/Lib/xmlrpc/client.py
@@ -1127,7 +1127,7 @@
     accept_gzip_encoding = True
 
     # if positive, encode request using gzip if it exceeds this threshold
-    # note that many server will get confused, so only use it if you know
+    # note that many servers will get confused, so only use it if you know
     # that they can decode such a request
     encode_threshold = None #None = don't encode
 
@@ -1258,7 +1258,7 @@
     # Send HTTP request.
     #
     # @param host Host descriptor (URL or (URL, x509 info) tuple).
-    # @param handler Targer RPC handler (a path relative to host)
+    # @param handler Target RPC handler (a path relative to host)
     # @param request_body The XML-RPC request body
     # @param debug Enable debugging if debug is true.
     # @return An HTTPConnection.