"usage: engine opts [engine ...]\n",
" -v[v[v[v]]] - verbose mode, for each engine, list its 'control commands'\n",
" -vv will additionally display each command's description\n",
" -vvv will also add the input flags for each command\n",
" -vvvv will also show internal input flags\n",
" -c - for each engine, also list the capabilities\n",
"usage: engine opts [engine ...]\n",
" -v[v[v[v]]] - verbose mode, for each engine, list its 'control commands'\n",
" -vv will additionally display each command's description\n",
" -vvv will also add the input flags for each command\n",
" -vvvv will also show internal input flags\n",
" -c - for each engine, also list the capabilities\n",