SL(1): Cure your bad habit of mistyping
SL (Steam Locomotive) runs across your terminal when you type "sl" as you meant to type "ls". It's just a joke command, and not useful at all.
What did you change?
I looked at the original repo's PRs and issues and put patches to each issue in a better rewrite of the original SL. Hopefully this doesn't take too long.
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