[3.11] gh-100916: Convert argument to appropriate type (GH-100917) (GH-100918)

Co-authored-by: Yao-Ching Huang <tom4996131207@gmail.com>

Doc/howto/logging-cookbook.rst

@@ -1131,7 +1131,7 @@ each request is handled by a thread:
                                                  'context can be used to '
                                                  'populate logs')
         aa = ap.add_argument
-        aa('--count', '-c', default=100, help='How many requests to simulate')
+        aa('--count', '-c', type=int, default=100, help='How many requests to simulate')
         options = ap.parse_args()
 
         # Create the dummy webapps and put them in a list which we can use to select