Default configuration file: use quotes for all files and

give a sensible example for the domain {} section.
ok florian

src/etc/acme-client.conf

@@ -1,21 +1,22 @@
 #
-# $OpenBSD: acme-client.conf,v 1.2 2016/09/21 13:18:03 florian Exp $
+# $OpenBSD: acme-client.conf,v 1.3 2017/01/21 09:06:57 benno Exp $
 #
 authority letsencrypt {
-        agreement url https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf
+        agreement url "https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf"
         api url "https://acme-v01.api.letsencrypt.org/directory"
-        account key /etc/acme/letsencrypt-privkey.pem
+        account key "/etc/acme/letsencrypt-privkey.pem"
 }
 
 authority letsencrypt-staging {
-        agreement url https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf
-        api url https://acme-staging.api.letsencrypt.org/directory
-        account key /etc/acme/letsencrypt-staging-privkey.pem
+        agreement url "https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf"
+        api url "https://acme-staging.api.letsencrypt.org/directory"
+        account key "/etc/acme/letsencrypt-staging-privkey.pem"
 }
 
-domain example.com {
-	alternative names { secure.example.com }
-	domain key /etc/ssl/private/example.com.key
-	domain certificate /etc/ssl/example.com.crt
-	sign with letsencrypt
-}
+#domain example.com {
+#	alternative names { secure.example.com }
+#	domain key "/etc/ssl/private/example.com.key"
+#	domain certificate "/etc/ssl/example.com.crt"
+#	domain chain certificate "/etc/ssl/example.com.chain.pem"
+#	sign with letsencrypt
+#}