Fixed: Return type for method in CPPlatformPasteboard.j

Method return type is labeled as void despite returning a BOOL and the DOC comment stating that it should return a BOOL

AppKit/Platform/DOM/CPPlatformPasteboard.j

@@ -348,7 +348,7 @@ var hasEditableTarget = function(aDOMEvent)
 /*
 Return true if the event may be a copy and paste event, but the target is not an input or text area.
 */
-- (void)_mayRequireDOMPasteboardElementHack:(DOMEvent)aDOMEvent flags:(unsigned)modifierFlags
+- (BOOL)_mayRequireDOMPasteboardElementHack:(DOMEvent)aDOMEvent flags:(unsigned)modifierFlags
 {
     return !hasEditableTarget(aDOMEvent) && (modifierFlags & CPPlatformActionKeyMask);
 }