Pretty print test results

[szg251]

CLI commands are pretty long, and can be hard to find the differences, so I added some pretty diff there.
Example result:

    Send ada to address without change:                            FAIL (0.09s)
      test/Spec/BotPlutusInterface/Contract.hs:907:
      command at index 8 was incorrect:

      Expected:
                                          ▼ ▼▼▼▼▼
      cardano-cli transaction build-raw --babbage-era --tx-in e406b0cf676fc2b1a9edb061
      7f259ad025c20ea6f0333820aa7cef1bfe7302e5#0 --tx-out addr1vyxk54m7j3q6mrkevcunryr
      wf4p7e68c93cjk8gzxkhlkpsjpczl2+1000 --required-signer ./signing-keys/signing-key
      -cb9358529df4729c3246a2a033cb9821abbfd16de4888005904abc41.skey --fee 200 --proto
                                                          ▼
      col-params-file ./protocol.json --out-file ./txs/tx-?.raw
      Got:
      cardano-cli transaction build-raw --alonzo-era --tx-in e406b0cf676fc2b1a9edb0617
                                           ▲▲▲▲▲
      f259ad025c20ea6f0333820aa7cef1bfe7302e5#0 --tx-out addr1vyxk54m7j3q6mrkevcunryrw
      f4p7e68c93cjk8gzxkhlkpsjpczl2+1000 --required-signer ./signing-keys/signing-key-
      cb9358529df4729c3246a2a033cb9821abbfd16de4888005904abc41.skey --fee 200 --protoc
      ol-params-file ./protocol.json --out-file ./txs/tx-4862b799cba361cb2df20a66daf4d
                                                         ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
      d04190cbd1cb73e4b9562a5e891493345e5.raw
      ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲

[nazrhom]

why are "\n" being removed only from the expected?

[szg251]

The actual doesn't include any new lines. Of course we could add it, but it wouldn't have any effect.

[szg251]

I'm assuming that this function will only be used to compare CLI commands.