Minor Settings.c cleanup #4486

Job	Run time
build-dragonflybsd-latest-gcc	2m 48s
build-netbsd-latest-gcc	3m 5s
build-macos-latest-clang	38s
build-freebsd-latest-clang	3m 2s
build-openbsd-latest-clang	3m 0s
build-solaris-latest-gcc	4m 55s
build-ubuntu-latest-clang-analyzer	1m 30s
build-ubuntu-latest-clang-sanitizer	1m 1s
build-ubuntu-latest-full-featured-clang	1m 5s
build-ubuntu-latest-full-featured-gcc	57s
build-ubuntu-latest-gcc-static	52s
build-ubuntu-latest-minimal-clang	1m 2s
build-ubuntu-latest-minimal-gcc	38s
build-ubuntu-latest-pcp	38s
lint-pcp-config	4s
lint-whitespace	2s
	25m 17s

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