Clarify the dedent() example a bit by indenting the input lines unevenly.

Doc/lib/libtextwrap.tex

@@ -59,11 +59,11 @@ For example:
 def test():
     # end first line with \ to avoid the empty line!
     s = '''\
-    Hey
-    there
+    hello
+      world
     '''
-    print repr(s)          # prints '    Hey\n    there\n    '
-    print repr(dedent(s))  # prints 'Hey\nthere\n'
+    print repr(s)          # prints '    hello\n      world\n    '
+    print repr(dedent(s))  # prints 'hello\n  world\n'
 \end{verbatim}
 \end{funcdesc}