Remove the double spacing of `.koinosrc` execution results

[sgerbino]

Resolves #155.

Brief description

Removes the double spacing of .koinosrc execution results.

Checklist

• [x] I have built this pull request locally
• [x] I have ran the unit tests locally
• [x] I have manually tested this pull request
• [x] I have reviewed my pull request
• [x] I have added any relevant tests

Demonstration

❯ ./koinoscli
Connected to endpoint https://api.koinos.io/
Token 'koin' at address 15DJN4a8SgrbGhhGksSBASiSYjGnMU8dGL registered
Token 'vhp' at address 1AdzuXSpC6K9qtXdCBgD5NUpDNwHjMgrc9 registered
Contract 'pob' at address 159myq5YUhhoVWu3wsHKHiJYKPKGUrGiyv registered
Contract 'name_service' at address 19WxDJ9Kcvx4VqQFkpwVmwVEy1hMuwXtQE registered

Koinos CLI v1.0.0
Type "list" for a list of commands, "help <command>" for help on a specific command.
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