Fix missing commas in gensymbol.pl and DLL symbol pre/postfixing in CMake builds #5513

Job	Run time
msys2 (UCRT64, int64, Release)	17m 15s
build (ubuntu-latest, flang, cmake)	10m 19s
build (ubuntu-latest, gfortran, make)	21m 54s
msys2 (MINGW32, int32, Release)	14m 28s
build (ubuntu-latest, gfortran, cmake)	46m 11s
build (macos-latest, gfortran, cmake)	29m 8s
build (macos-latest, gfortran, make)	12m 52s
build (ubuntu-latest, flang, make)	5m 53s
msys2 (UCRT64, int32, Release)	15m 42s
msys2 (CLANG64, int32, Release)	17m 53s
msys2 (UCRT64, int32, None, mingw-w64-ucrt-x86_64, fc)	13m 31s
msys2 (CLANG64, int64, Release)	15m 25s
cross_build (alpha, alpha-linux-gnu, TARGET=EV4)	3m 2s
cross_build (mips64el, mips64el-linux-gnuabi64, DYNAMIC_ARCH=1 TARGET=GENERIC)	3m 30s
neoverse_build	11m 12s
cross_build (mipsel, mipsel-linux-gnu, TARGET=MIPS1004K)	3m 25s
cross_build (riscv64, riscv64-linux-gnu, TARGET=RISCV64_GENERIC)	2m 31s
	4h 4m 11s

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