Issue #23921: Standardized documentation whitespace formatting.
Original patch by James Edwards.
diff --git a/Doc/library/multiprocessing.rst b/Doc/library/multiprocessing.rst
index 684a59f..42049c4 100644
--- a/Doc/library/multiprocessing.rst
+++ b/Doc/library/multiprocessing.rst
@@ -2663,8 +2663,8 @@
             ... do something using "lock" ...
 
         if __name__ == '__main__':
-           lock = Lock()
-           for i in range(10):
+            lock = Lock()
+            for i in range(10):
                 Process(target=f).start()
 
     should be rewritten as ::
@@ -2675,8 +2675,8 @@
             ... do something using "l" ...
 
         if __name__ == '__main__':
-           lock = Lock()
-           for i in range(10):
+            lock = Lock()
+            for i in range(10):
                 Process(target=f, args=(lock,)).start()
 
 Beware of replacing :data:`sys.stdin` with a "file like object"