使用luarocks安装lunit，出现下面报错：
jerry@ubuntu:~$ sudo luarocks install lunit
Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/torc h/rocks/master – Failed downloading https://raw.githubusercontent.com/torch/rocks/master/manifest
Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/rock s-moonscript-org/moonrocks-mirror/master – Failed downloading https://raw.githubusercontent.com/rocks-m oonscript-org/moonrocks-mirror/master/manifest
Error: No results matching query were found.
经查发现https://raw.githubusercontent.com/torch/rocks/master/manifest这个地址无法连接。只好切换另一个服务器了
方法1：
sudo luarocks install –verbose –only-server=http://rocks.moonscript.org lunit
方法2：
jerry@ubuntu:~$ mkdir ~/.cache/luarocks/https___rocks.moonscript.org
jerry@ubuntu:~$ sudo wget https://rocks.moonscript.org/manifest-5.1 -O ~/.cache/luarocks/https___rocks.moonscript.org/manifest-5.1
