change short log to have graphing by default

zsh/zshrc

@@ -79,7 +79,7 @@ alias ga.='git add .'
 alias gs='git status'
 alias gd='git diff'
 alias gds='git diff --staged'
-alias gl='git log --pretty=oneline'
+alias gl='git log --pretty=oneline --graph'
 alias glg='git log --graph'
 alias glp='git log -p'
 alias gls='git log --stat'