Minor logging tweaks.

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

@@ -256,7 +256,7 @@ public final class PoolElf
       }
       
       if (LOGGER.isDebugEnabled()) {
-         LOGGER.debug("{} - Reset {} on connection {}", resetBits != 0 ? stringFromResetBits(resetBits) : "nothing", poolEntry.connection);
+         LOGGER.debug("{} - Reset ({}) on connection {}", resetBits != 0 ? stringFromResetBits(resetBits) : "nothing", poolEntry.connection);
       }
    }
 

src/main/java/com/zaxxer/hikari/proxy/ConnectionProxy.java

@@ -178,6 +178,7 @@ public abstract class ConnectionProxy implements IHikariConnectionProxy
 
                if (!poolEntry.isAutoCommit) {
                   delegate.rollback();
+                  LOGGER.debug("{} - Executed rollback on connection {} due to dirty commit state on close().", poolEntry.parentPool, delegate);
                }
             }