test: improve cmd download test
test: improve cmd download test

yciabaud/webtorrent,arestov/webtorrent,feross/webtorrent,joshterrill/webtorrent,jamesliu96/webtorrent,webtorrent/webtorrent,joshterrill/webtorrent,rom1504/webtorrent,webtorrent/webtorrent,yciabaud/webtorrent,jamesliu96/webtorrent,feross/webtorrent