CoreThumbnailer: Reindent after last changes

4 jobs for interrupt_discoverers in 14 minutes and 47 seconds (queued for 7 minutes and 49 seconds)
Status Job ID Name Coverage
  Test
passed #285974
amd64 debian
asan-ubsan

00:08:24

passed #285971
amd64 debian
linux

00:06:22

passed #285972
win32
win32

00:10:56

passed #285973
win64
win64

00:10:39