Remind myself how to run the postgres unit tests.

core/src/test/java/org/bitcoinj/core/PostgresFullPrunedBlockChainTest.java

@@ -14,6 +14,7 @@ import org.junit.Test;
 public class PostgresFullPrunedBlockChainTest extends AbstractFullPrunedBlockChainTest
 {
     // Replace these with your postgres location/credentials and remove @Ignore to test
+    // You can set up a fresh postgres with the command: create user bitcoinj superuser password 'password';
     private static final String DB_HOSTNAME = "localhost";
     private static final String DB_NAME = "bitcoinj_test";
     private static final String DB_USERNAME = "bitcoinj";