message: Proper string format on ValueError when MPI library is not found.
diff: @@ -1482,7 +1482,7 @@ def set_other_mpi_vars(environ_cp):
  else:
  raise ValueError(
  'Cannot find the MPI library file in %s/lib or %s/lib64 or %s/lib32' %
  - mpi_home, mpi_home, mpi_home)
  + (mpi_home, mpi_home, mpi_home))
  def set_system_libs_flag(environ_cp):
  