anchor.diff:      </td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_MEMORY_LIMIT</tt></td>
  +    <td><tt>NOMAD&lowbar;MEMORY&lowbar;LIMIT</tt></td>
       <td>Memory limit in MB for the task</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_CPU_LIMIT</tt></td>
  +    <td><tt>NOMAD&lowbar;CPU&lowbar;LIMIT</tt></td>
       <td>CPU limit in MHz for the task</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_ALLOC_ID</tt></td>
  +    <td><tt>NOMAD&lowbar;ALLOC&lowbar;ID</tt></td>
       <td>Allocation ID of the task</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_ALLOC_NAME</tt></td>
  +    <td><tt>NOMAD&lowbar;ALLOC&lowbar;NAME</tt></td>
       <td>Allocation name of the task</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_ALLOC_INDEX</tt></td>
  +    <td><tt>NOMAD&lowbar;ALLOC&lowbar;INDEX</tt></td>
       <td>Allocation index; useful to distinguish instances of task groups. From 0 to (count - 1).</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_TASK_NAME</tt></td>
  +    <td><tt>NOMAD&lowbar;TASK&lowbar;NAME</tt></td>
       <td>Task's name</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_GROUP_NAME</tt></td>
  +    <td><tt>NOMAD&lowbar;GROUP&lowbar;NAME</tt></td>
       <td>Group's name</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_JOB_NAME</tt></td>
  +    <td><tt>NOMAD&lowbar;JOB&lowbar;NAME</tt></td>
       <td>Job's name</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_DC</tt></td>
  +    <td><tt>NOMAD&lowbar;DC</tt></td>
       <td>Datacenter in which the allocation is running</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_REGION</tt></td>
  +    <td><tt>NOMAD&lowbar;REGION</tt></td>
       <td>Region in which the allocation is running</td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_META_&lt;key&gt;</tt></td>
  +    <td><tt>NOMAD&lowbar;META&lowbar;&lt;key&gt;</tt></td>
       <td>The metadata value given by <tt>key</tt> on the task's metadata</td>
     </tr>
     <tr>
  -    <td><tt>VAULT_TOKEN</tt></td>
  +    <td><tt>VAULT&lowbar;TOKEN</tt></td>
       <td>The task's Vault token. See [Vault Integration](/docs/vault-integration/index.html) for more details</td>
     </tr>
     <tr><th colspan="2">Network-related Variables</th></tr>
     <tr>
  -    <td><tt>NOMAD_IP_&lt;label&gt;</tt></td>
  +    <td><tt>NOMAD&lowbar;IP&lowbar;&lt;label&gt;</tt></td>
       <td>
         Host IP for the given port <tt>label</tt>. See
         [here](/docs/job-specification/network.html) for more information.
       </td>
     </tr>
     <tr>
  -    <td><tt>NOMAD_PORT_&lt;label&gt;</tt></td>
  +    <td><tt>NOMAD&lowbar;PORT&lowbar;&lt;label&gt;</tt></td>
       <td>
         Port for the given port <tt>label</tt>. Driver-specified port when a port
         map is used, otherwise the host's static or dynamic port allocation.
  
positive.code:     <th>Description</th>
    </tr>
    <tr>
      <td><tt>NOMAD_ALLOC_DIR</tt></td>
      <td>
  	    The path to the shared <tt>alloc/</tt> directory. See
  	    [here](/docs/runtime/environment.html#task-directories) for more
  
negative.code:     </td>
    </tr>
    <tr>
      <td><tt>NOMAD&lowbar;TASK&lowbar;DIR</tt></td>
      <td>
  	    The path to the task <tt>local/</tt> directory. See
  	    [here](/docs/runtime/environment.html#task-directories) for more
  