a073ef9ee8
As indicated in the MPI3.2 document 14.3.10 page 599 line 1, the only MPI error code possible is MPI_SUCCESS. All other errors must be in the error class MPI_T_ERR*. Fix the return of few pvar/cvar function that failed to correctly convert to an MPI error code. Signed-off-by: George Bosilca <bosilca@icl.utk.edu> (cherry picked from commit f4af1848c9e5ea962a560e1f0b6bdab3d8ef0b6a)