Fix some typos.

This commit was SVN r17168.

ompi/mpi/cxx/comm_inln.h

@@ -576,7 +576,7 @@ MPI::Comm::Create_keyval(MPI_Comm_copy_attr_function* comm_copy_attr_fn,
 {
     // Back-end function does the heavy lifting
     int ret, keyval;
-    return do_create_keyval(comm_copy_attr_fn, comm_delete_attr_fn,
+    ret = do_create_keyval(comm_copy_attr_fn, comm_delete_attr_fn,
                            NULL, NULL,
                            extra_state, keyval);
     return (MPI_SUCCESS == ret) ? keyval : ret;
@@ -591,7 +591,7 @@ MPI::Comm::Create_keyval(MPI::Comm::Copy_attr_function* comm_copy_attr_fn,
 {
     // Back-end function does the heavy lifting
     int ret, keyval;
-    return do_create_keyval(NULL, comm_delete_attr_fn,
+    ret = do_create_keyval(NULL, comm_delete_attr_fn,
                            comm_copy_attr_fn, NULL,
                            extra_state, keyval);
     return (MPI_SUCCESS == ret) ? keyval : ret;
@@ -606,7 +606,7 @@ MPI::Comm::Create_keyval(MPI_Comm_copy_attr_function* comm_copy_attr_fn,
 {
     // Back-end function does the heavy lifting
     int ret, keyval;
-    return do_create_keyval(comm_copy_attr_fn, NULL,
+    ret = do_create_keyval(comm_copy_attr_fn, NULL,
                            NULL, comm_delete_attr_fn,
                            extra_state, keyval);
     return (MPI_SUCCESS == ret) ? keyval : ret;