Function split_once

src/utils/curl_parser.rs:204–207

(s: &str, sep: char)

        "GET" => HttpMethod::Get,
        "POST" => HttpMethod::Post,
        "PUT" => HttpMethod::Put,
        "DELETE" => HttpMethod::Delete,
        "PATCH" => HttpMethod::Patch,
        "HEAD" => HttpMethod::Head,
        "OPTIONS" => HttpMethod::Options,
        _ => HttpMethod::Get,
    }