Fix reference.xsl boostification.

asio/boostify.pl

diff --git a/asio/boostify.pl b/asio/boostify.pl
index 8d171d6..f412979 100755
--- a/asio/boostify.pl
+++ b/asio/boostify.pl
@@ -142,6 +142,7 @@
       $line =~ s/\[@\.\.\/src\/examples/[\@boost_asio\/example/g;
       $line =~ s/include\/asio/boost\/asio/g;
       $line =~ s/\^asio/^boost\/asio/g;
+      $line =~ s/namespaceasio/namespaceboost_1_1asio/g;
     }
 
     # Conditional replacements.