Dummy kernel plugin added for consistent config generation

plugins/inputs/system/kernel_notlinux.go

@@ -0,0 +1,27 @@
+// +build !linux
+
+package system
+
+import (
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+type Kernel struct {
+}
+
+func (k *Kernel) Description() string {
+	return "Get kernel statistics from /proc/stat"
+}
+
+func (k *Kernel) SampleConfig() string { return "" }
+
+func (k *Kernel) Gather(acc telegraf.Accumulator) error {
+	return nil
+}
+
+func init() {
+	inputs.Add("kernel", func() telegraf.Input {
+		return &Kernel{}
+	})
+}