fix #4080

ethtool_sset_info  adding some extra space to it.

also fix valgrind warning
```
Unloaded link configuration context.
==31690==
==31690== HEAP SUMMARY:
==31690==     in use at exit: 8,192 bytes in 2 blocks
==31690==   total heap usage: 431 allocs, 429 frees, 321,164 bytes allocated
==31690==
==31690== 4,096 bytes in 1 blocks are still reachable in loss record 1 of 2
==31690==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==31690==    by 0x166B32: mempool_alloc_tile (mempool.c:62)
==31690==    by 0x166BBC: mempool_alloc0_tile (mempool.c:81)
==31690==    by 0x15B8FC: hashmap_base_new (hashmap.c:732)
==31690==    by 0x15B9F7: internal_hashmap_new (hashmap.c:766)
==31690==    by 0x151291: conf_files_list_strv_internal (conf-files.c:103)
==31690==    by 0x1514BA: conf_files_list_strv (conf-files.c:135)
==31690==    by 0x13A1CF: link_config_load (link-config.c:227)
==31690==    by 0x135B68: builtin_net_setup_link_init
(udev-builtin-net_setup_link.c:77)
==31690==    by 0x1306B3: udev_builtin_init (udev-builtin.c:57)
==31690==    by 0x11E984: adm_builtin (udevadm-test-builtin.c:72)
==31690==    by 0x117B4D: run_command (udevadm.c:75)
```
Fixes #4080

0 files changed, 0 insertions, 0 deletions