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-rw-r--r--docs/manual/rewrite/flags.xml6
1 files changed, 5 insertions, 1 deletions
diff --git a/docs/manual/rewrite/flags.xml b/docs/manual/rewrite/flags.xml
index 59eb4cd0c9..0b9ccfa9a8 100644
--- a/docs/manual/rewrite/flags.xml
+++ b/docs/manual/rewrite/flags.xml
@@ -866,6 +866,10 @@ The <code>L</code> flag can be useful in this context to end the
This protects from a malicious URL causing the expanded substitution to
map to an unexpected filesystem location.</p>
</section>
-
+<section id="flag_unc"><title>UNC</title>
+ <p> Setting this flag prevents the merging of multiple leading slashes,
+ as used in Windows UNC paths. The flag is not necessary when the rules
+ substitution starts with multiple literal slashes. </p>
+</section>
</manualpage>