arm: Add a sentence about overlaping selectors in sortlist statement

diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index 6be700c820758429efa363b46625e0068b9f00e8..96fcb0fb24c088d525bf0d20e30e7432e19832b6 100644 (file)
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -8492,7 +8492,8 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
            The first element (which may be an IP address, an IP prefix, an
            ACL name or a nested <command>address_match_list</command>) of
            each top level list is checked against the source address of
-           the query until a match is found.
+           the query until a match is found. When the addresses in the
+           first element overlap, the first rule to match gets selected.
          </para>
          <para>
            Once the source address of the query has been matched, if the