Dedent incorrectly removes spaces that aren't at the start of a line

[dadgar]

When a string has lines with no indentation and lines with indentations, the dedented string will remove the first spaces within the line instead of just at the start.

package main

import (
	"fmt"

	"github.com/muesli/reflow/dedent"
)

func main() {
	input := `This is an example
	
  with no shared indent.`
	fmt.Println(dedent.String(input))
}

The output will be:

Thisisan example

with no shared indent.

https://go.dev/play/p/Q13CeRD8Tb2

[sidharth-chauhan]

Hi, I’d like to work on this issue. I plan to fix the indentation handling by implementing a function that correctly removes only the common leading spaces from multiline strings without affecting intentional spaces inside or at the end of lines. Please assign this issue to me.
Thank you!