如何在git log --graph中显示提交日期？

Question

我正在使用以下命令显示提交信息，

awk 'BEGIN{srand()} 
    {n=split($1,a," "); 
    m=split($2,b," "); 
    printf "%s\t",$1; 
    for (i=1;i<=m;i++) 
        printf "%d%c", a[int(rand() * n) +1], (i == m) ? "\n" : " "
    }' FS=\\t input

结果如下：

git log --graph --date=format:%Y-%m-%d\ %H:%M:%S --pretty=format:"%C(yellow)%h %Creset%cd%C(auto)%d %Creset%s" --all --oneline --simplify-by-decoration

我想按如下所示显示日期，该怎么办？

* 5c3c4c0 (HEAD -> devBranch1, origin/devBranch1) Merge remote branch 'devBranch1' into devBranch1
| * 60d9558 (origin/devBranch2) modify
|/
* df49eb7 (devBranch2) test