Golang filepath.Join removes a trailing path separator

trailingsep.go

package main

import (
	"fmt"
	"os"
	"path/filepath"
)

func main() {
  // golang removes thet trailing path separator. 
  // The output will be "a/b/c"
  // See also https://go.dev/play/p/42x3HiccT6_S
	fmt.Println(filepath.Join("a", "b", "c", string(os.PathSeparator)))
}