spawn: fix a compiler warning (unused-variable)
spawn: add thread for fast info/error messages, fix spawn_pipe_read()
spawn: introduce tvh_fopen() to close fds for spawned processes
iptv pipe: fix url / arg parsing bug, add ${service_name} substitution
spawn: remove spawn_and_store_stdout()
fix DVR docs - fixes#2483
spawn: improve the pipe log reading
spawn: more CLOEXEC fixes
spawn: another cleanups in spawn_and_give_stdout()
spawn: reshuffle code to get proper stdin for spawned process