[DOC] mention property `enableJndiLookup` is required for JNDI lookup
@@ -1216,7 +1216,7 @@ rootLogger.appenderRef.stdout.ref = STDOUT
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<tr>
<td>jndi</td>
- <td>A value set in the default JNDI Context.</td>
+ <td>A value set in the default JNDI Context. (Requires system property <code>log4j2.enableJndiLookup</code> to be set to <code>true</code>.)</td>
</tr>
<tr>
<td>jvmrunargs</td>
