Isn't that self-explanatory already?
Although successfully dumped the data contained in the wallet but you'll notice that the private keys in the output are still encrypted,
Each labeled with "encrypted_privkey".

In the instance when you include --passphrase= with the correct passphrase, additional lines with "sec" will be available which is the decrypted private keys in WIF (Wallet Import Format).

Additionally, if you want to output it in a .txt file instead of displaying in the command line, add: > "yourfilename.txt" at the end of the command. (space before and after ">")