BUG/MINOR: stream: Don't incr frontend cum_req counter when stream is closed

This counter is already incremented when a new request is received (or if an
error occurred waiting it). So it must not be incremented when the stream is
terminated, at the end of process_strem(). This bug was introduced by the commit
cff0f739e ("MINOR: counters: Review conditions to increment counters from
analysers").

No backport needed.
1 file changed