Comment #7 on issue 2273 by [email protected]: Translations: Links in the online manuals should point to the appropriate language if available
http://code.google.com/p/lilypond/issues/detail?id=2273
BTW, I just found out something annoying about the missing suffixes in the online manuals. The deep links (i.e. links to specific points in a page) in the index of manuals won't work if your browser user-agent is set to a language different from english, so you get redirected to the section and you lose the "jump to" feature.
See for example: http://lilypond.org/doc/v2.17/Documentation/usage/latex#index-_005cheader-in-LaTeX-documents if you have a browser with a language different from english, of course
