Fix a bunch of UI nits in sheriff-o-matic.

Tools/GardeningServer/ui/ct-unexpected-failures.html

Index: Tools/GardeningServer/ui/ct-unexpected-failures.html
diff --git a/Tools/GardeningServer/ui/ct-unexpected-failures.html b/Tools/GardeningServer/ui/ct-unexpected-failures.html
index cfd3bac3a8e047019d9be685969bc8adc9a2785a..0b208c38857395d93b01eebcd1241b4d79401861 100644
--- a/Tools/GardeningServer/ui/ct-unexpected-failures.html
+++ b/Tools/GardeningServer/ui/ct-unexpected-failures.html
@@ -20,9 +20,22 @@ found in the LICENSE file.
         left: 10px;
       }
 
-      ct-tree-status, ct-failing-builders {
+      ct-failing-builders {
         margin: 5px;
       }
+
+      ct-tree-status {
+        white-space: nowrap;
+        overflow: hidden;
+        text-overflow: ellipsis;
+        margin: 5px;
+        padding: 3px;
+      }
+
+      ct-tree-status[status=open] {
+        margin: 0;
+        padding: 0;
+      }
     </style>
     <ct-failure-analyzer id="analyzer" status="{{ analyzerStatus }}" failures="{{ failures }}"></ct-failure-analyzer>
     <ct-failure-grouper failures="{{ failures.unexpected }}" groups="{{ failureGroups }}"></ct-failure-grouper>