some tiny changes...

git-svn-id: file:///svn/phpbb/trunk@5967 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/includes/db/dbal.php

@@ -341,7 +341,7 @@ class dbal
 
 		if (empty($_GET['explain']))
 		{
-			return;
+			return false;
 		}
 
 		if (!$query && $this->query_hold != '')
@@ -516,6 +516,8 @@ class dbal
 
 			break;
 		}
+
+		return true;
 	}
 }
 

phpBB/includes/db/postgres.php

@@ -331,6 +331,8 @@ class dbal_postgres extends dbal
 			unset($this->open_queries[(int) $query_id]);
 			return @pg_free_result($query_id);
 		}
+
+		return false;
 	}
 
 	/**