cygwin下git出现ca-bundle.crt相关错误的解决办法

 在cygwin下出现：

error: error setting certificate verify locations:
  CAfile: /usr/ssl/certs/ca-bundle.crt
  CApath: none while accessing https://github.com/apache/zookeeper.git/info/refs
fatal: HTTP request failed

这个是由于没有安装证书所致，需要重新运行cygwin的setup.exe文件，选择 ：ca-certificates 包进行安装即可