treewide: Remove garbage white spaces

5 jobs for master in 2 minutes and 43 seconds (queued for 10 seconds)
Status Name Job ID Coverage
  Test
passed test-compilation #602813

00:00:22

passed test-links #602814

00:00:25

failed test-remote-links #602837
allowed to fail

00:01:39

failed test-remote-links #602815
allowed to fail

01:00:00

 
  Build
passed build #602816

00:00:38

 
Name Stage Failure
failed
test-remote-links Test
2021-09-21 11:23:53 URL: https://www.python.org/dev/peps/pep-0020/ 200 OK
2021-09-21 11:23:53 URL: https://www.turris.com/en/news/news-list/wi-fi-upgrade-pack-turris-1x/ 200 OK
2021-09-21 11:23:54 URL: https://www.youtube.com/embed/ZrWzpsxqaRU 200 OK
2021-09-21 11:23:54 URL: https://www.youtube.com/watch?v=yL8Rpo0Wshc 200 OK
GnuTLS: Resource temporarily unavailable, try again.
GnuTLS: Resource temporarily unavailable, try again.
GnuTLS: Resource temporarily unavailable, try again.
2021-09-21 11:23:54 URL: https://zeromq.org/ 200 OK
Cleaning up file based variables
ERROR: Job failed: exit code 1