PHP Notice ob_start constant

Hello,

I’m using WP-Piwik version 0.9.9.12 and when activating debug, I can see the following notice:
Notice: Use of undefined constant ob_start – assumed ‘ob_start’ in wp-piwik/wp-piwik.php on line 762

Regarding trunk refactoring, this notice should now be triggered from the following line: https://plugins.trac.wordpress.org/browser/wp-piwik/trunk/classes/WP_Piwik.php?rev=950165#L380

The fix is kind of simple: just add “()” after “ob_start” call :).

Many thanks for this plugin, which is working great.
Lionel

https://wordpress.org/plugins/wp-piwik/