tk fmt is inconsistent in printing final newline

[nogweii]

Depending on whether there were any files that had the formatting fixed, a newline won't be printed. If all files checked are already correctly formatted, a trailing newline is printed.

Pretty minor, but figured the inconsistency wasn't intentional. 😄

Example script to demonstrate and outputs:

test.sh

tk fmt example.jsonnet
echo "--------"

When ran with incorrect formatting

Formatted 1 files--------

When the files don't need correction

All discovered files are already formatted. No changes were made
--------