templates/cert.cnf.erb: Use sha256 instead of sha1 by default, as SHA1 is now deprecated and showing warnings in modern browsers.
templates/cert.cnf.erb: Use sha256 instead of sha1 by default, as SHA1 is now deprecated and showing warnings in modern browsers.

fuel-infra/puppet-openssl,robbat2/puppet-openssl,robbat2/puppet-openssl,fuel-infra/puppet-openssl,camptocamp/puppet-openssl,bschonec/puppet-openssl,sorrowless/puppet-openssl,bschonec/puppet-openssl,camptocamp/puppet-openssl,MiamiOH/puppet-openssl,sorrowless/puppet-openssl,MiamiOH/puppet-openssl