BuildBot: Add anchors for unbound aliases.

masters/master.chromium/templates/build.html

 {% extends "layout.html" %}
 {% import 'forms.html' as forms %}
 {% from "change_macros.html" import change with context %}
 
 {% block content %}
 
 <h1>
 Builder <a href="{{ path_to_builder }}">{{ b.getBuilder().getName() }}</a>
 Build #{{ b.getNumber() }}
 <div class="bbp_placeholder"
@@ skipping 130 matching lines @@
                 b.getNumber() }}:{{ s.name|replace('/', '_') }}"></div>
     <a href="{{ s.link }}">{{ s.name }}</a>
     {% set previous_name = s.name %}
     {{ s.text }}&nbsp;<span style="float:right">{{ '( ' + s.time_to_run + ' )' if s.time_to_run else '' }}</span>
   </div>
 
   <ul>
     {% set item_class = cycler('alt', '') %}
     {% for l in s.logs %}
       <li class="{{ item_class.next() }}">
-        <a href="{{ l.link }}">{{ l.name }}</a>
+        {% if l.link %}
+          <a href="{{ l.link }}">{{ l.name }}</a>
+        {% else %}
+          <span>{{ l.name }}</span>

[dnj, 2016/04/13 15:39:59]

(Will never be hit for scenario (2), since waterfall will need to be restarted
to emit empty links.)

+        {% endif %}
         {% if s.aliases %}
           {% for a in s.aliases.get(l.name, ()) %}
             <a href="{{ a.url }}">[{{ a.text }}]</a>
           {% endfor %}
         {% endif %}
       </li>
     {% else %}
       <li class="{{ item_class.next() }}">- no logs -</li>
     {% endfor %}
 
@@ skipping 92 matching lines @@
       {{ change(c.asDict()) }}
     </li>
   {% else %}
     <li>no changes</li>
   {% endfor %}
   </ol>
 </div>
 {% endif %}
 
 {% endblock %}