cppcheck/rules/empty-catch-block.xml

<?xml version="1.0"?>
<rule>
  <tokenlist>normal</tokenlist>
  <pattern><![CDATA[\}\s*catch\s*\(.*\)\s*\{\s*\}]]></pattern>
  <message>
    <severity>style</severity>
    <summary>Empty catch block found.</summary>
  </message>
</rule>