anchor.diff:              wd="CLT_WD"
               klevel="CLT_KLEVEL"
               autostart="CLT_AUTOSTART">
  +
  +            <envs>
  +                <usegroup>CLT_ENV_GROUP_NAME</usegroup>
  +                ...
  +                <usegroup>CLT_ENV_GROUP_NAME_N</usegroup>
  +                <env name="CLTPROC_ENV_VARIABLE_NAME">CLTPROC_ENV_VARIABLE_VALUE</env>
  +                <env name="CLTPROC_ENV_VARIABLE_NAME_UNSET" unset="y" />
  +                ...
  +                <env name="CLPROC_ENV_VARIABLE_NAME_N">CLTPROC_ENV_VARIABLE_VALUE_N</env>
  +            </envs>
   
               <exec tag="CLT_TAG_EXEC" 
                   subsect="CLT_SUBSECT_EXEC" 
  
positive.code:         </server>
      </servers>
      <clients>
          <client cmdline="CLT_COMMAND_LINE [${NDRX_CLTTAG} ${NDRX_CLTSUBSECT}]" 
              log="CLT_LOG" 
              stdout="CLT_STDOUT"
  
negative.code:         <cctag>COMMON_CONFIG_TAG_DEFAULT</cctag>
          <protected>PROTECTED_SERVER_DEFAULT</protected>
          <reloadonchange>RELOAD_ON_CHANGE_DEFAULT</reloadonchange>
          <envs group="SV_ENV_GROUP_NAME">
              <env name="SV_ENV_VARIABLE_NAME">SV_ENV_VARIABLE_VALUE</env>
              <env name="SV_ENV_VARIABLE_NAME_UNSET" unset="y" />
              ...
              <env name="SV_ENV_VARIABLE_NAME_N">SV_ENV_VARIABLE_VALUE_N</env>
          </envs>
          ...
          <envs group="SV_ENV_GROUP_NAME_N">
              ...
          </envs>
      </defaults>
      <servers>
          <server name="SERVER_BINARY_NAME">
  