Print neoctrl-install command for debugging

Author: lutovich

driver/src/test/java/org/neo4j/driver/v1/util/Neo4jRunner.java

@@ -154,8 +154,10 @@ private void installNeo4j() throws IOException
             List<String> commands = new ArrayList<>();
             commands.add( "neoctrl-install" );
             String[] split = NEOCTRL_ARGS.trim().split( "\\s+" );
+            System.out.println( "--- Split neoctrl.args: " + Arrays.toString( split ) );
             commands.addAll( asList( split ) );
             commands.add( NEO4J_DIR );
+            System.out.println( "--- Full neoctrl-install command: " + commands );
 
             String tempHomeDir = executeCommand( commands ).trim();
             debug( "Downloaded server at `%s`, now renaming to `%s`.", tempHomeDir, HOME_DIR );