top-disk-users.sh: Ignore errors from 'du'

They happen with /home/docker/overlay/* files, but we are not
interested in them.
1 file changed
tree: ef5081a13d900e7c0a442e214b60d69723ec8a03
  1. apm-slaves-list.txt
  2. check-all-slaves.sh
  3. check-all.sh
  4. check-apm-slave.sh
  5. check-chroots.sh
  6. check-d05-slave.sh
  7. check-debian-slave.sh
  8. check-disk-partitions.sh
  9. check-disk-space.sh
  10. check-dpkg.sh
  11. check-hezner-ubuntu-slave.sh
  12. check-lsb-release.sh
  13. check-one-slave.sh
  14. check-sq-slave.sh
  15. check-thx1-slave.sh
  16. check-tk1-slave.sh
  17. check-tx1-slave.sh
  18. check-ubuntu-slave.sh
  19. chroots-apm-slave.txt
  20. chroots-debian-slave.txt
  21. chroots-ubuntu-slave.txt
  22. d05-slaves-list.txt
  23. debian-slaves-list.txt
  24. expected-disk-partitions-apm-slave.txt
  25. expected-disk-partitions-d05-slave.txt
  26. expected-disk-partitions-debian-slave.txt
  27. expected-disk-partitions-hezner-ubuntu-slave.txt
  28. expected-disk-partitions-sq-slave.txt
  29. expected-disk-partitions-thx1-slave.txt
  30. expected-disk-partitions-tk1-slave.txt
  31. expected-disk-partitions-tx1-slave.txt
  32. expected-disk-partitions-ubuntu-slave.txt
  33. expected-disk-space-apm-slave.txt
  34. expected-disk-space-d05-slave.txt
  35. expected-disk-space-debian-slave.txt
  36. expected-disk-space-home-generic.txt
  37. expected-disk-space-sq-slave.txt
  38. expected-disk-space-thx1-slave.txt
  39. expected-disk-space-tk1-slave.txt
  40. expected-disk-space-tx1-slave.txt
  41. expected-disk-space-ubuntu-slave.txt
  42. expected-lsb-apm-slave.txt
  43. expected-lsb-d05-slave.txt
  44. expected-lsb-debian-slave.txt
  45. expected-lsb-hezner-ubuntu-slave.txt
  46. expected-lsb-sq-slave.txt
  47. expected-lsb-thx1-slave.txt
  48. expected-lsb-tk1-slave.txt
  49. expected-lsb-tx1-slave.txt
  50. expected-lsb-ubuntu-slave.txt
  51. hezner-ubuntu-slaves-list.txt
  52. packages-apm-common.txt
  53. packages-apm-slave.txt
  54. packages-ubuntu-common.txt
  55. packages-ubuntu-slave.txt
  56. postbuild-report.sh
  57. remote-exec.sh
  58. set-build-description.sh
  59. set-node-offline.sh
  60. sq-slaves-list.txt
  61. tcwg-check-all-slaves.sh
  62. thx1-slaves-list.txt
  63. tk1-slaves-list.txt
  64. top-disk-one-slave.sh
  65. top-disk-users.sh
  66. tx1-slaves-list.txt
  67. ubuntu-slaves-list.txt