meson: Fix indentation

6 jobs for master in 7 minutes and 15 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #745581
fedora:asan

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passed #745583
fedora:coverage

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69.8%
passed #745582
fedora:ubsan

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passed #745580
fedora:Werror

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  Deploy
passed #745584
pages

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passed pages:deploy

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