BSD

Simplify sans-arm-gcc to just the exclude. #6

Job	Run time
FreeBSD (x86_64, clang++12, devel/llvm12, clang)	5m 12s
FreeBSD (x86_64, g++15, lang/gcc15, gcc)	4m 40s
FreeBSD (x86_64, g++12, gcc12, gcc)	4m 36s
FreeBSD (x86_64, clang++16, devel/llvm16, clang)	5m 23s
FreeBSD (aarch64, clang++18, devel/llvm18, clang)	1h 21m 42s
FreeBSD (x86_64, clang++20, devel/llvm20, clang)	5m 17s
FreeBSD (x86_64, g++13, gcc13, gcc)	4m 48s
FreeBSD (aarch64, clang++14, devel/llvm14, clang)	1h 21m 15s
FreeBSD (aarch64, clang++12, devel/llvm12, clang)	1h 23m 52s
FreeBSD (aarch64, clang++21, devel/llvm21, clang)	1h 21m 20s
FreeBSD (x86_64, clang++13, devel/llvm13, clang)	5m 15s
FreeBSD (aarch64, clang++15, devel/llvm15, clang)	1h 21m 49s
FreeBSD (x86_64, clang++15, devel/llvm15, clang)	5m 6s
FreeBSD (aarch64, clang++16, devel/llvm16, clang)	1h 2m 25s
FreeBSD (aarch64, clang++13, devel/llvm13, clang)	1h 18m 34s
FreeBSD (aarch64, clang++19, devel/llvm19, clang)	1h 21m 8s
FreeBSD (x86_64, clang++21, devel/llvm21, clang)	5m 16s
FreeBSD (aarch64, clang++17, devel/llvm17, clang)	1h 19m 17s
FreeBSD (x86_64, clang++17, devel/llvm17, clang)	5m 9s
FreeBSD (x86_64, g++16, lang/gcc16, gcc)	4m 49s
FreeBSD (aarch64, clang++20, devel/llvm20, clang)	1h 19m 17s
FreeBSD (x86_64, g++14, lang/gcc14, gcc)	5m 47s
FreeBSD (x86_64, clang++19, devel/llvm19, clang)	5m 23s
FreeBSD (x86_64, clang++14, devel/llvm14, clang)	5m 12s
FreeBSD (x86_64, clang++18, devel/llvm18, clang)	5m 33s
	14h 28m 5s

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