(image) when only a image is posted in WatchNotifier

Chan/src/org/floens/chan/core/watch/WatchNotifier.java

@@ -128,10 +128,17 @@ public class WatchNotifier {
 
             List<CharSequence> lines = new ArrayList<CharSequence>();
             for (Post post : posts) {
+                CharSequence comment;
+                if (post.comment.length() == 0) {
+                    comment = "(image)";
+                } else {
+                    comment = post.comment;
+                }
+
                 if (pins.size() > 1) {
-                    lines.add(post.title + ": " + post.comment);
+                    lines.add(post.title + ": " + comment);
                 } else {
-                    lines.add(post.comment);
+                    lines.add(comment);
                 }
             }