Fixed typo in upgrade.php

db/upgrade.php

@@ -36,7 +36,7 @@ function xmldb_tool_cleanupcourses_upgrade($oldversion) {
         $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null);
         $table->add_field('title', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'id');
         $table->add_field('active', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'title');
-        $table->add_field('timeacive', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'active');
+        $table->add_field('timeactive', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'active');
         $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
 
         // Conditionally create the table.