OP#501 update template

templates/nrpe_cfg.erb

@@ -37,7 +37,7 @@ allow_weak_random_seed=<%= @ne_allow_weak_rnd_seed %>
 ssl_version=<%= @ne_ssl_version %>
 ssl_use_adh=<%= @ne_ssl_use_adh %>
 ssl_cipher_list=<%= @ne_ssl_cipher_list %>
-ssl_cacert_file=<%= @ne_ssl_cacert_file %>
+ssl_cacert_file=<%= @ne_ssl_ca_cert_file %>
 ssl_cert_file=<%= @ne_ssl_cert_file %>
 ssl_privatekey_file=<%= @ne_ssl_privatekey_file %>
 ssl_client_certs=<%= @ne_ssl_client_certs %>