func Append(g *types.Cmd) {
	g.AddOptions("--append")
}
Append Append ref names and object names of fetched refs to the existing contents of .git/FETCH_HEAD.
Without this option old data in .git/FETCH_HEAD will be overwritten.
-a, --append
package fetch
import (
	"fmt"
	"github.com/ldez/go-git-cmd-wrapper/v2/types"
)
func All(g *types.Cmd) {
	g.AddOptions("--all")
}