Fix regression: std.http.Client basic authorization sending user:user instead of user:password when passed in URI

[tadejg]

The following example populates the Authorization header with user:user instead of user:password, due to a typo.

const std = @import("std");

pub fn main() !void {
    const allocator = std.heap.page_allocator;
    var client = std.http.Client{ .allocator = allocator };
    defer client.deinit();
    var response = std.io.Writer.Allocating.init(allocator);
    defer response.deinit();
    const stat = try client.fetch(.{
        .method = .POST,
        .location = .{
            .url = "http://user:password@127.0.0.1",
        },
        .headers = .{ .content_type = .{ .override = "application/json" } },
        .response_writer = &response.writer,
        .payload = "{}",
    });
    std.log.info("OK: status={s}, response={s}", .{ @tagName(stat.status), response.written() });
}

[andrewrk]

Thanks!