branches/zip: row_sel_store_mysql_rec(): Add missing pointer cast.

Do not do arithmetics on void pointers.

row/row0sel.c

@@ -2782,7 +2782,8 @@ row_sel_store_mysql_rec(
 			mysql_rec[templ->mysql_null_byte_offset]
 				|= (byte) templ->mysql_null_bit_mask;
 			memcpy(mysql_rec + templ->mysql_col_offset,
-			       prebuilt->default_rec + templ->mysql_col_offset,
+			       (const byte*) prebuilt->default_rec
+			       + templ->mysql_col_offset,
 			       templ->mysql_col_len);
 		}
 	}