Error message are displayed with a wrapped Error.

[bkhouri]

I encountered the following

bkhouri@ThinkStation-a503:~$ ./swiftly install main-snapshot
Error(message: "Could not load swiftly\'s configuration file at /home/bkhouri/.local/share/swiftly/config.json.\n\nTo begin using swiftly you can install it: \'./swiftly init\'.")

Notice how the last command shows Error(message: "...") instead of the message.

[cmcgee1024]

This should be fixed by #203