Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/outputs/health/contains.go

@@ -0,0 +1,19 @@
+package health
+
+import "github.com/influxdata/telegraf"
+
+type Contains struct {
+	Field string `toml:"field"`
+}
+
+func (c *Contains) Check(metrics []telegraf.Metric) bool {
+	success := false
+	for _, m := range metrics {
+		ok := m.HasField(c.Field)
+		if ok {
+			success = true
+		}
+	}
+
+	return success
+}