http_response: reorder wbuf_maybe on successful early flush

We can use the wbuf_close return value instead to ensure we close
tmpio properly and follow the same code path as a normal
(:wait_writable-triggering) buffered response would.

Add a few tests to ensure we properly close the response body
for exec_cgi, where I noticed zombies and started me down this
rabbit hole looking for places where the response body was not
closed properly.

0 files changed, 0 insertions, 0 deletions