only set the CN field when generating initial CSR to prevent issues with the...

only set the CN field when generating initial CSR to prevent issues with the php7 ppa version of openssl (#1223)

OpenSSL 1.1.0f now validates the other subject fields and rejects the empty string (for the country?) because it isn't two characters.

setup/ssl.sh

@@ -74,7 +74,7 @@ if [ ! -f $STORAGE_ROOT/ssl/ssl_certificate.pem ]; then
 	CSR=/tmp/ssl_cert_sign_req-$$.csr
 	hide_output \
 	openssl req -new -key $STORAGE_ROOT/ssl/ssl_private_key.pem -out $CSR \
-	  -sha256 -subj "/C=/ST=/L=/O=/CN=$PRIMARY_HOSTNAME"
+	  -sha256 -subj "/CN=$PRIMARY_HOSTNAME"
 
 	# Generate the self-signed certificate.
 	CERT=$STORAGE_ROOT/ssl/$PRIMARY_HOSTNAME-selfsigned-$(date --rfc-3339=date | sed s/-//g).pem