Seems to be a toml parse bug around triple pounds

plugins/outputs/librato/librato.go

@@ -23,20 +23,20 @@ type Librato struct {
 }
 
 var sampleConfig = `
-  ### Librator API Docs
-  ### http://dev.librato.com/v1/metrics-authentication
+  ## Librator API Docs
+  ## http://dev.librato.com/v1/metrics-authentication
 
-  ### Librato API user
+  ## Librato API user
   api_user = "telegraf@influxdb.com" # required.
 
-  ### Librato API token
+  ## Librato API token
   api_token = "my-secret-token" # required.
 
-  ### Tag Field to populate source attribute (optional)
-  ### This is typically the _hostname_ from which the metric was obtained.
+  ## Tag Field to populate source attribute (optional)
+  ## This is typically the _hostname_ from which the metric was obtained.
   source_tag = "hostname"
 
-  ### Connection timeout.
+  ## Connection timeout.
   # timeout = "5s"
 `