`--stream` does not print entire buffer about xh HOT 1 OPEN

This happens because --stream only shows complete lines, like HTTPie. See httpie/cli#1060

We don't have an option like --no-buffer. Maybe we should.

I see two workarounds:

1. Send a newline immediately after <div id="root"><!--$?--><template id="B:0"></template>suspending...<!--/$-->. Then curl won't need --no-buffer either.

2. Pipe the output through cat: xh :3000 --stream --print=hb | cat
   This disables the "smart" line-buffering and just sends everything through as soon as it's received.
   (--print=hb ensures you still see the headers, those are hidden by default when piping.)

from xh.