find should always return an array

web/includes/Event.php

@@ -532,7 +532,7 @@ class Event {
           $file = $backTrace[1]['file'];
           $line = $backTrace[1]['line'];
           Error("Invalid value for limit($limit) passed to Event::find from $file:$line");
-          return;
+          return array();
         }
       }
     }

web/includes/Filter.php

@@ -145,7 +145,7 @@ public $defaults = array(
           $file = $backTrace[1]['file'];
           $line = $backTrace[1]['line'];
           Error("Invalid value for limit($limit) passed to Filter::find from $file:$line");
-          return;
+          return array();
         }
       }
     }

web/includes/Group.php

@@ -91,7 +91,7 @@ class Group {
           $file = $backTrace[1]['file'];
           $line = $backTrace[1]['line'];
           Error("Invalid value for limit($limit) passed to Group::find from $file:$line");
-          return;
+          return array();
         }
       }
     } # end if options

web/includes/Monitor.php

@@ -312,7 +312,7 @@ private $control_fields = array(
           $file = $backTrace[1]['file'];
           $line = $backTrace[1]['line'];
           Error("Invalid value for limit($limit) passed to Control::find from $file:$line");
-          return;
+          return array();
         }
       }
     }

web/includes/Storage.php

@@ -117,7 +117,7 @@ class Storage {
           $file = $backTrace[1]['file'];
           $line = $backTrace[1]['line'];
           Error("Invalid value for limit($limit) passed to Control::find from $file:$line");
-          return;
+          return array();
         }
       } # end if limit
     } # end if options