Mattias de Zalenski

Add a multi package line format

8

Add a couple of formatters that outputs multiple packages per line. Example output: ```shell % gotestsum --format pkgname-compact --format-with-fails --wall-time \ --format-compact plain -- -count 1 ./... 367ms ∅ ....

Add a new function to also return any error encountered when fetching the disk usage, to be able to debug.

Parse unknown options as opaque instead of failing the whole message

1

Currently it is not possible to see anything about a message that includes an unsupported option, except that option number. For example, the UDP message `40020011c13cffd1e91a8401020304`: "Unsupported option number 258"...