Since the creation of /etc/pki and therefore removal of /usr/share/ssl, curl has
broken and no longer works without extra flags.
This is because it is looking in /usr/share/ssl etc

When curl is invoked:

Logging in...
curl: (60) error setting certificate verify locations:
  CAfile: /usr/share/ssl/certs/ca-bundle.crt
  CApath: none

More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). The default
 bundle is named curl-ca-bundle.crt; you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.