git clone 报错：fatal: unable to access ‘https://github.com/xxxxxxxxx/xxx.git/‘: gnutls_

完整报错：fatal: unable to access 'https://github.com/xxxxxxx/xxxx.git/': gnutls_handshake() failed: The TLS connection was non-properly terminated.

解决：重置代理：

git config --global  --unset https.https://github.com.proxy 
git config --global  --unset http.https://github.com.proxy 

再执行git clone 即可成功