Add changelog for #309

and fix ordering and naming of the entries

Signed-off-by: Matthias Rampke <[email protected]>

CHANGELOG.md

@@ -1,7 +1,8 @@
-## 0.17.0 / unreleased
+## 0.17.0 / Unreleased
 
-* [FEATURE] Offline configuration check ([#312](https://github.com/prometheus/statsd_exporter/pull/312))
 * [CHANGE] Support non-timer distributions without unit conversion ([#314](https://github.com/prometheus/statsd_exporter/pull/314))
+* [ENHANCEMENT] Offline configuration check ([#312](https://github.com/prometheus/statsd_exporter/pull/312))
+* [BUGFIX] Allow matching single-letter metric name components ([#309](https://github.com/prometheus/statsd_exporter/pull/309))
 
 Distribution and histogram events (type `d`, `h`) are now treated as distinct from timer events (type `ms`).
 Their values are observed as they are, while timer events are converted from milliseconds to seconds.