[OMPI users] Bug in MPI_Allreduce man page

[Jeremiah Willcock]

The "WHEN COMMUNICATOR IS AN INTER-COMMUNICATOR" section in the man page 
for MPI_Allreduce (in both 1.4.1 and the current SVN trunk) mentions the 
use of a root process and a "root" parameter name (which doesn't exist for 
MPI_Allreduce).  Should I add this to Trac?

-- Jeremiah Willcock