Disable lll

The only place I've seen lll complain much is flag help, error
messsages, and such, which aren't really a problem when they're long.

Other stuff like complexity is probably best left to review, IMO.

.golangci.yml

@@ -28,9 +28,9 @@ linters:
   - ineffassign
   - nakedret
   - gocyclo
-  - lll
   - dupl
   - goimports
   - golint
   # disabled:
   # - goconst is overly aggressive
+  # - lll generally just complains about flag help & error strings that are human-readable