add missing bracket

diff --git a/include/datetime.php b/include/datetime.php
index f6bf1041e17625fa2a1d37c9e673adbc4bce2659..58a6186108472adc123e1445fa3f2aea69366f70 100644 (file)
--- a/include/datetime.php
+++ b/include/datetime.php
@@ -87,7 +87,7 @@ function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d
                $from = 'UTC';
        if($to === '')
                $to = 'UTC';
-       if($s === '' || (! is_string($s)))
+       if( ($s === '') || (! is_string($s)) )
                $s = 'now';
 
        // Slight hackish adjustment so that 'zero' datetime actually returns what is intended