This log statements is passing along the wrong number of parameters.

When passing along a `Throwable` parameters, the calls from the LOGGER class only ever have 2 arguments: the already formatted String, and the Throwable. As can be seen in the source code of the LOGGER object.

src/main/java/com/zaxxer/hikari/metrics/prometheus/PrometheusMetricsTracker.java

@@ -17,11 +17,8 @@
 package com.zaxxer.hikari.metrics.prometheus;
 
 import com.zaxxer.hikari.metrics.IMetricsTracker;
-import io.prometheus.client.Collector;
-import io.prometheus.client.CollectorRegistry;
 import io.prometheus.client.Counter;
 import io.prometheus.client.Summary;
-import java.util.concurrent.TimeUnit;
 
 class PrometheusMetricsTracker implements IMetricsTracker
 {

src/main/java/com/zaxxer/hikari/pool/HikariPool.java

@@ -476,7 +476,7 @@ public final class HikariPool extends PoolBase implements HikariPoolMXBean, IBag
       }
       catch (Exception e) {
          if (poolState == POOL_NORMAL) { // we check POOL_NORMAL to avoid a flood of messages if shutdown() is running concurrently
-            LOGGER.debug("{} - Cannot acquire connection from data source", poolName, (e instanceof ConnectionSetupException ? e.getCause() : e));
+            LOGGER.debug(String.format("{%s - Cannot acquire connection from data source", poolName), (e instanceof ConnectionSetupException ? e.getCause() : e));
          }
          return null;
       }