Templates: fix quoting comset

Author: andig

util/templates/modbus.tpl

@@ -4,7 +4,7 @@ id: {{ .id }}
 # RS485 via adapter (Modbus RTU)
 device: {{ .device }}
 baudrate: {{ .baudrate }}
-comset: "{{ .comset }}"
+comset: {{ .comset }}
 {{- else if or (eq .modbus "rs485tcpip") .rs485tcpip }}
 # RS485 via TCP/IP (Modbus RTU)
 uri: {{ .host }}:{{ .port }}