error: unknown option `-git'
usage: git shortlog [<options>] [<revision-range>] [[--] <path>...]
   or: git log --pretty=short | git shortlog [<options>]

    -c, --[no-]committer  group by committer rather than author
    -n, --[no-]numbered   sort output according to the number of commits per author
    -s, --[no-]summary    suppress commit descriptions, only provides commit count
    -e, --[no-]email      show the email address of each author
    -w[<w>[,<i1>[,<i2>]]] linewrap output
    --[no-]group <field>  group by field