update Docs for ANY_SOURCE

diff --git a/Simple.pm b/Simple.pm
index 6c07fb000784fe75e6f6dcea86b2afd7a55acbea..3733eb7d425c102e80147dfc4979116fb7abd71d 100644 (file)
--- a/Simple.pm
+++ b/Simple.pm
@@ -295,6 +295,8 @@ destination, tag and comminicator will be delivered in the order in
 which they were sent.  No other guarantees of timeliness or ordering
 can be given.  If needed, use C<MPI_Barrier>.
 
+C<$source> can be C<MPI_ANY_SOURCE> which will do what it says.
+
 =cut
 
 sub Recv {