docs(pillar.example): update with quoted "yes" for comp-lzo

* Update example pillar with quoted "yes" for comp-lzo

This avoids Salt's yaml/json casting to bool.

pillar.example

@@ -143,7 +143,7 @@ openvpn:
         - SHA384
       # yamllint disable-line rule:line-length
       tls_cipher: 'DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-CAMELLIA256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-RSA-AES128-SHA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA'
-      comp_lzo:
+      comp_lzo: "yes"
       max_clients: 100
       user: nobody
       group: nobody
@@ -260,7 +260,7 @@ openvpn:
       # yamllint disable-line rule:line-length
       tls_cipher: 'DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-CAMELLIA256-SHA:DHE-RSA-AES256-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-RSA-AES128-SHA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA'
       remote_cert_tls: server
-      comp_lzo:
+      comp_lzo: "yes"
       verb: 3
       mute: 20
       up: /usr/local/bin/tunnel_up.sh