lib-http: http-server now always creates a payload istream, even empty one. This simplifies the caller's logic so that it doesn't need to explicitly check if payload is NULL everywhere.
lib-http: http-server now always creates a payload istream, even empty one.
This simplifies the caller's logic so that it doesn't need to explicitly
check if payload is NULL everywhere.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot