fish-shell/fish-shell — pull request #878 by mariuszs (2013-06-17 16:52:05+00:00)
Title: Informative __fish_git_prompt_show_upstream

Informative configuration:

set -g __fish_git_prompt_showupstream "informative"
set -g __fish_git_prompt_char_upstream_ahead "↑"
set -g __fish_git_prompt_char_upstream_behind "↓"
set -g __fish_git_prompt_char_upstream_prefix ""