use correct type for sizeof

**L would have worked well too.  Depending on the distribution sizeof *L
may return 8 instead of 4. **L is preferable, but since we don't expect
this datatype to change very often, sizeof int is less subtle and easier
to understand.

Signed-off-by: Jamie Couture <jamie.couture@gmail.com>

ui-ssdiff.c

@@ -23,7 +23,7 @@ static void create_or_reset_lcs_table()
 	int i;
 
 	if (L != NULL) {
-		memset(*L, 0, sizeof(*L) * MAX_SSDIFF_SIZE);
+		memset(*L, 0, sizeof(int) * MAX_SSDIFF_SIZE);
 		return;
 	}