Fixed secretz.js solution to print hashes on separate lines

The current solution prints all the hashes on the same line.

    $ cat my.tar | node program.js aes256 kjdfl
    b1946ac92492d2347c6235b4d2611184b1946ac92492d2347c6235b4d2611184890e9c28722fd07e99df03904f5b556f     hello.tx3
     hello.txt
     program.js

After the fix the output is correct.

    $ cat my.tar | node program.js aes256 kjdfl
    b1946ac92492d2347c6235b4d2611184 hello.tx3
    b1946ac92492d2347c6235b4d2611184 hello.txt
    890e9c28722fd07e99df03904f5b556f program.js