[bugfix] language

m4/dune_mpi.m4

@@ -185,8 +185,8 @@ AC_DEFUN([DUNE_MPI],[
 
     # Check for MPI-2 Standard
     # We have to provide a dummy lib here as we do not know what the name
-    # of the mpi is. -lm should be save.
-    AC_CHECK_LIB(m,[MPI_Finalized], [AC_DEFINE(MPI_2, 1, [Define to 1 MPI supports MPI-2])])
+    # of the mpi is. -lm should be saved.
+    AC_CHECK_LIB(m,[MPI_Finalized], [AC_DEFINE(MPI_2, 1, [Define to 1 if MPI supports MPI-2])])
 
     # restore variables
     LIBS="$ac_save_LIBS"