Bug#834516: Not just Gnus, all elisp using lisp/net/tls.el

[Adam Sjøgren]

Just noticed that the tls-success variable in Emacs lives in
lisp/net/tls.el, so the change affects all elisp applications/libraries
using it - besides Gnus¹ at least jabber.el².

¹ http://gnus.org/
² http://emacs-jabber.sourceforge.net/