add a missing semicolon

Author: QY-Shi

cmake/config/template-arguments.in

@@ -173,7 +173,7 @@ EXTERNAL_PARALLEL_VECTORS := { @DEAL_II_EXPAND_TRILINOS_MPI_VECTOR@;
                                @DEAL_II_EXPAND_TPETRA_VECTOR_COMPLEX_DOUBLE@;
                                @DEAL_II_EXPAND_TPETRA_VECTOR_COMPLEX_FLOAT@;
                                @DEAL_II_EXPAND_PETSC_MPI_VECTOR@;
-                               @DEAL_II_EXPAND_PETSC_MPI_BLOCKVECTOR@
+                               @DEAL_II_EXPAND_PETSC_MPI_BLOCKVECTOR@;
                                @DEAL_II_EXPAND_TPETRA_BLOCKVECTOR_DOUBLE@;
                                @DEAL_II_EXPAND_TPETRA_BLOCKVECTOR_FLOAT@;
                                @DEAL_II_EXPAND_TPETRA_BLOCKVECTOR_COMPLEX_DOUBLE@;