fish 3.0 math now needs --scale=0

[Konstruktionist]

See fish 3.0 math docs

With the release of fish 3.0 you need to add --scale=0 to lines after math on lines 160-164.

math is now a builtin which default to floats. --scale=0 sets it to integers.

Also the redirect char ^ is deprecated. Now 2>

[Chuan Ji]

Thanks for the suggestions! Fixed in c421c0c and 076bb25 .

[Zack Kendall]

You rock.