PFlag/Cobra compatibility in prefork

[mhkarimi1383]

I'm using Cobra in my projects to manage my commands and Cobra is using PFlag to manage flags and since it's using POSIX/GNU-style (with -- instead of -) I'm getting that error below

After adding snippet below to add compatibility I'm getting

      --prefork-child   Is a child process
unknown shorthand flag: 'p' in -prefork-child
unknown shorthand flag: 'p' in -prefork-child

import (
	flag "github.com/spf13/pflag"
	goflag "flag"
)

func init() {
	flag.CommandLine.AddGoFlagSet(goflag.CommandLine)
	flag.Parse()
}

Also without

flag.Parse()

I'm getting

Error: unknown shorthand flag: 'p' in -prefork-child
Error: unknown shorthand flag: 'p' in -prefork-child

[erikdubbelboer]

I agree, using a flag for this is not the best way to do it, see: #1783