Use pem cert if it's available

src/freedombone-utils-web

@@ -121,7 +121,11 @@ function nginx_ssl {
     echo '    ssl_stapling off;' >> $filename
     echo '    ssl_stapling_verify off;' >> $filename
     echo '    ssl on;' >> $filename
-    echo "    ssl_certificate /etc/ssl/certs/${domain_name}.crt;" >> $filename
+    if [ -f /etc/ssl/certs/${domain_name}.pem ]; then
+        echo "    ssl_certificate /etc/ssl/certs/${domain_name}.pem;" >> $filename
+    else
+        echo "    ssl_certificate /etc/ssl/certs/${domain_name}.crt;" >> $filename
+    fi
     echo "    ssl_certificate_key /etc/ssl/private/${domain_name}.key;" >> $filename
     echo "    ssl_dhparam /etc/ssl/certs/${domain_name}.dhparam;" >> $filename
     echo '' >> $filename