Fix loud archive unpacking
Fix loud archive unpacking

In luarocks.fs.unix.tools.unpack_archive execute commands in quiet
mode (that is, silenced by default, but not with --verbose), like
in luarocks.fs.unzip and luarocks.fs.win32.tools.unpack_archive.

luarocks/luarocks,xpol/luavm,xpol/luainstaller,robooo/luarocks,robooo/luarocks,luarocks/luarocks,xpol/luainstaller,keplerproject/luarocks,tarantool/luarocks,xpol/luainstaller,xpol/luainstaller,tarantool/luarocks,luarocks/luarocks,keplerproject/luarocks,xpol/luavm,robooo/luarocks,xpol/luavm,tarantool/luarocks,xpol/luarocks,xpol/luarocks,xpol/luarocks,keplerproject/luarocks,xpol/luarocks,xpol/luavm,keplerproject/luarocks,robooo/luarocks,xpol/luavm