[clang-format] Comply to Google style.

8 jobs for v3.7.0 in 3 minutes and 48 seconds (queued for 2 seconds)
latest
Name Stage Failure
failed
robotpkg-dynamic-graph-v3-16.04-debug Test
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robotpkg-dynamic-graph-v3-stretch-release Test
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failed
robotpkg-dynamic-graph-v3-16.04-release Test
No job log
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doc-coverage Test
No job log