Changelog: "Enpower -l (tag-listing mode). This is now able to emit all tags in JSON formatted output via -j, which makes it easy for dynamic sites to play with tag listings in any way they choose. (See sblg(1) for an explanation of the output format.) Also add -r, which stipulates that -l will print tag-first. This is most useful for -j, as it allows for easy browsing by tag name."