It loads vim which throws an error and then has no files loaded.
Error detected while processing command line:
E486: Pattern not found: \vtest
Press ENTER or type command to continue
Instead I'd prefer if viack just stopped, maybe with an error message, if the ack -l returned no files.
Heh. I just looked into this briefly last Friday since it annoyed me
one too many times. Ideally there'd be a way to tell vim "don't open an
empty buffer if I didn't list any files", but I didn't see one.
I may just have to settle for checking ack -l before passing it to vim.
Don't open vim when there are no matches
Fixes [GH #2].