man: use tabs instead of spaces (fixes build)

otherwise sc-doc errors:

FAILED: man/unl0kr.1 meson --internal exe --capture man/unl0kr.1 --feed ../man/unl0kr.1.scd -- scdoc --- stderr --- Error at 48:1: Tabs are required for indentation

@cherrypicker Despite the bunch of errors, CI succeeds in !40 (merged). Definitely something wrong with it.

Error at 48:1: Tabs are required for indentation
ninja: job failed: /usr/bin/meson --internal exe --capture man/unl0kr.1 --feed ../man/unl0kr.1.scd -- /usr/bin/scdoc
ninja: subcommand failed

[Error] Expected version 3.2.0
./test/helpers.sh: line 22: ./_build/unl0kr/unl0kr: No such file or directory

./test/helpers.sh: line 11: kill: (315) - No such process

[Error] Expected framebuffer backend to be selected
./test/helpers.sh: line 7: ./_build/unl0kr/unl0kr: No such file or directory

./test/helpers.sh: line 11: kill: (323) - No such process

[Error] Expected framebuffer backend to be selected
./test/helpers.sh: line 7: ./_build/unl0kr/unl0kr: No such file or directory

./test/helpers.sh: line 11: kill: (331) - No such process

[Error] Expected DRM backend to be selected
./test/helpers.sh: line 7: ./_build/unl0kr/unl0kr: No such file or directory

Job succeeded

Yes, indeed. Looks like I screwed up the exit code handling. Fixed with !44 (merged).

mentioned in merge request !44 (merged)

approved this merge request

Thanks for fixing this and sorry for the garbage CI.

mentioned in commit b8a5c194

merged

Confirmation that things work now. CI started failing after my fix to the CI and then stopped failing after landing this fix.