Ooops, this is embarrasing: Move the star so the example

actually makes sense...

Spotted by:	Ralph Corderoy <ralph@inputplus.co.uk>

doc/sphinx/phk/platforms.rst

@@ -14,7 +14,7 @@ But making your program run on everything is hard work very hard work.
 
 For instance, did you know that:
 
-	sizeof(void*) != sizeof(const void*)
+	sizeof(void*) != sizeof(const * void)
 
 is legal in a ISO-C compliant environment ?