git: filter overly wide chars in authors alias
git: filter overly wide chars in authors alias

`columns` sometimes complains when using wide characters
use `iconv` to quietly dismiss them.

Signed-off-by: Liam Beguin <ac8b122174024ef5e58ca7d6d989651e9bbfc948@gmail.com>

Liambeguin/dotfiles,Liambeguin/dotfiles