<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/78839>78839</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang-format] always auto add a space after '@'
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang-format
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          D-artagna
      </td>
    </tr>
</table>

<pre>
    
I use "@Project_VERSION_MAJOR@" to express a value, but clang-format engine always add a space after the second '@', and compiler cannot identify "@Project_VERSION_MAJOR @".
</pre>
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