FIX #6129 : correct test on database connection

htdocs/install/step1.php

@@ -243,13 +243,13 @@ if (! $error) {
             dol_syslog("databasefortest=" . $databasefortest . " connected=" . $db->connected . " database_selected=" . $db->database_selected, LOG_DEBUG);
             //print "databasefortest=".$databasefortest." connected=".$db->connected." database_selected=".$db->database_selected;
 
-            if (empty($db_create_database) && $db->connected && !$db->database_selected) {
+			if (empty($db_create_database) && $db->connected && !$db->database_selected) {
                 print '<div class="error">'.$langs->trans("ErrorConnectedButDatabaseNotFound",$db_name).'</div>';
                 print '<br>';
                 if (! $db->connected) print $langs->trans("IfDatabaseNotExistsGoBackAndUncheckCreate").'<br><br>';
                 print $langs->trans("ErrorGoBackAndCorrectParameters");
                 $error++;
-            } elseif ($db->error && (empty($db_create_database) && $db->connected)) {
+            } elseif ($db->error && ! (! empty($db_create_database) && $db->connected)) {
             	// Note: you may experience error here with message "No such file or directory" when mysql was installed for the first time but not yet launched.
                 if ($db->error == "No such file or directory") print '<div class="error">'.$langs->trans("ErrorToConnectToMysqlCheckInstance").'</div>';
                 else print '<div class="error">'.$db->error.'</div>';
@@ -991,4 +991,3 @@ function write_conf_file($conffile)
 
 	return $error;
 }
-