git: update oneline alias
git: update oneline alias

display more information with the oneline alias:
 - short oid
 - subject
 - relative since
 - author

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

Liambeguin/dotfiles,Liambeguin/dotfiles