Update docs/building-apps/removed-mpi-constructs.rst

Co-authored-by: Jeff Squyres <[email protected]>
Signed-off-by: Edgar Gabriel <[email protected]>

docs/building-apps/removed-mpi-constructs.rst

@@ -109,7 +109,7 @@ default:
 Although these symbols are no longer prototyped in ``mpi.h``, *they are
 still present in the MPI library in Open MPI* |ompi_series|. This enables
 legacy MPI applications to *link and run* successfully with Open MPI
-|ompi_ver|, even though they will fail to *compile*.
+|ompi_series|, even though they will fail to *compile*.
 
 Furthermore, the MPI C++ interfaces were deprecated in version
 2.2, and then were removed in MPI-3.0.  Starting