title: Error trying to run rbenv install 2.5.1
body: <p>I'm trying to install ruby using rubenv but i'm running into following error:</p>
  
  <pre><code>rbenv install 2.5.1 -v
  /tmp/ruby-build.20180525142355.3872 ~
  Downloading ruby-2.5.1.tar.bz2...
  -&gt; https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.1.tar.bz2
  curl: (60) SSL certificate problem: self signed certificate in certificate chain
  More details here: https://curl.haxx.se/docs/sslcerts.html
  
  curl failed to verify the legitimacy of the server and therefore could not
  establish a secure connection to it. To learn more about this situation and
  how to fix it, please visit the web page mentioned above.
  error: failed to download ruby-2.5.1.tar.bz2
  
  BUILD FAILED (Ubuntu 18.04 using ruby-build 20180424)
  </code></pre>
  
  <p>I'm using Windows 10 Subsytem for Linux.  Issue seems to be related to certs but i don't know how to go around it. </p>