Fix a broken link in cppguide.html

[GoogleCodeExporter]

There is a broken link linking to `Macro_Names` instead of `#Macro_Names`. 
Refer to the attachment for the exact patch.

Original issue reported on code.google.com by cyen0...@gmail.com on 22 Oct 2014 at 10:46

Attachments:

• cppguide.html.patch