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-rw-r--r--docs/manual/mod/mod_log_config.xml5
1 files changed, 3 insertions, 2 deletions
diff --git a/docs/manual/mod/mod_log_config.xml b/docs/manual/mod/mod_log_config.xml
index 14b6d7af5f..2b86c0d21f 100644
--- a/docs/manual/mod/mod_log_config.xml
+++ b/docs/manual/mod/mod_log_config.xml
@@ -253,8 +253,9 @@
You need to enable <module>mod_logio</module> to use this.</td></tr>
<tr><td><code>%O</code></td>
- <td>Bytes sent, including headers. Cannot be zero. You need to
- enable <module>mod_logio</module> to use this.</td></tr>
+ <td>Bytes sent, including headers. May be zero in rare cases
+ such as when a request is aborted before a response is sent.
+ You need to enable <module>mod_logio</module> to use this.</td></tr>
<tr><td><code>%S</code></td>
<td>Bytes transferred (received and sent), including request and headers,