Fix linter issues (#126) #328

Job	Run time
lint	18s
build (ubuntu-latest, cmake, debug, gnu, 14)	46s
build (macos-latest, meson, debug, gnu, 14)	1m 25s
build (macos-latest, cmake, debug, gnu, 14)	51s
build (ubuntu-latest, fpm, debug, gnu, 12)	1m 7s
build (ubuntu-latest, meson, debug, gnu, 14)	1m 4s
build (ubuntu-latest, meson, debug, intel, 2021)	1m 27s
build (ubuntu-latest, meson, debug, gnu, 10)	1m 2s
build (ubuntu-latest, meson, coverage, gnu, 11)	1m 9s
	9m 9s

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