CliFx/CliFx.Analyzers/Utils/Extensions/StringExtensions.cs

using System;

namespace CliFx.Analyzers.Utils.Extensions;

internal static class StringExtensions
{
    public static string TrimEnd(
        this string str,
        string sub,
        StringComparison comparison = StringComparison.Ordinal
    )
    {
        while (str.EndsWith(sub, comparison))
            str = str[..^sub.Length];

        return str;
    }
}