This commit was manufactured by cvs2svn to create tag 'r231'.
diff --git a/.hgtags b/.hgtags
index 1b23417..f567524 100644
--- a/.hgtags
+++ b/.hgtags
@@ -45,3 +45,4 @@
 3cfc3951b7012bb015ecd37c2f9d390354852e53 v2.2a3
 cdbf933b0494b161be7c66862a77607a753b6f2b v2.3c1
 cb95b6bc0d633a598bf61b9897c880a684a2eb5c v2.3c2
+c3bfad6a81500eab71d466562720abb52b1b567a v2.3.1