Update output of memory_profiler in tutorial

doc/tutorial/python-memory-management.txt

@@ -300,7 +300,7 @@ program:
         del x
         return y
 
-    if __name__=="__main__":
+    if __name__ == "__main__":
         function()
 
 invoking
@@ -317,12 +317,12 @@ prints, on a 64-bit computer
 
     Line #    Mem usage    Increment   Line Contents
     ================================================
-         3                             @profile
-         4      9.11 MB      0.00 MB   def function():
-         5     40.05 MB     30.94 MB       x=range(1000000) # allocate a big list
-         6     89.73 MB     49.68 MB       y=copy.deepcopy(x)
-         7     82.10 MB     -7.63 MB       del x
-         8     82.10 MB      0.00 MB       return y
+         4                             @profile
+         5      9.11 MB      0.00 MB   def function():
+         6     40.05 MB     30.94 MB       x = list(range(1000000)) # allocate a big list
+         7     89.73 MB     49.68 MB       y = copy.deepcopy(x)
+         8     82.10 MB     -7.63 MB       del x
+         9     82.10 MB      0.00 MB       return y
 
 This program creates a list of n=1,000,000 ints (n x 24 bytes = ~23 MB) and an
 additional list of references (n x 8 bytes = ~7.6 MB), which amounts to a total