mtoyoda/sl — pull request #18 by Esya (2014-09-21 13:59:58+00:00)
Title: Cleaner arguments and speed option

Now provides a speed option, yay! I do not know the `sl.1` format so let me know how to update it if you want this merged.

Now, to use, `sl -s [speed]`, where speed is between 1 and 10, 1 being the slowest and 10 the fastest. Default is 5.

I also changed the argument reading to use getopt which is cleaner and more flexible.