e167cf9f21
I.e. append a suffix *before* the version, rather than after. So we get "sqlite-interactive-3.8.0.2" instead of "sqlite-3.8.0.2-interactive". The latter is broken since nix-env just sees it the suffix as part of the version, so "nix-env -u" will happily upgrade "sqlite-3.8.0.2-interactive" to "sqlite-3.9".