build.tt: only show RunCommandLogs tab if there are any to show

Dependencies

• [2] 55CWVPVZ Builds page: show RunCommand logs
• [3] 2GUAKGTB Fix indentation of build.tt
• [4] SWXX2O4A Update boostrap to latest 4.3.1
• [5] DLOYLDGX builds page: capitalize tabs (#1072)
• [*] J5UVLXOK * Start of a basic Catalyst web interface.

Change contents

• replacement in src/root/build.tt at line 152
  [3.572]→[2.112:226](∅→∅)
  − <li class="nav-item"><a class="nav-link" href="#tabs-runcommandlogs" data-toggle="tab">RunCommand Logs</a></li>
  [3.572]

  [3.2164]
  + [% IF runcommandlogs.size() > 0 %]<li class="nav-item"><a class="nav-link" href="#tabs-runcommandlogs" data-toggle="tab">RunCommand Logs</a></li>[% END %]