Go get LibreSSL SSL_connect: SSL_ERROR_SYSCALL

# cd .; git clone -- https://github.com/gogf/gf /Users/flame/Downloads/GoCode/src/github.com/gogf/gf
Cloning into '/Users/flame/Downloads/GoCode/src/github.com/gogf/gf'...
fatal: unable to access 'https://github.com/gogf/gf/': LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443
package github.com/gogf/gf/v2: exit status 128

go env -w GOPRIVATE=https://mirrors.aliyun.com