check-format-commit.sh: make awk patterns more robust for MacOS and c… #1276

Job	Run time
compiler (gcc-7, ubuntu-20.04)	4m 20s
compiler (gcc-8, ubuntu-20.04)	4m 27s
compiler (gcc-9, ubuntu-20.04)	4m 37s
compiler (gcc-10, ubuntu-20.04)	4m 21s
compiler (gcc-11, ubuntu-22.04)	4m 33s
compiler (gcc-12, ubuntu-22.04)	5m 10s
compiler (gcc-13, ubuntu-22.04, ubuntu-toolchain-r/test)	6m 24s
compiler (clang-6.0, ubuntu-20.04)	4m 36s
compiler (clang-7, ubuntu-20.04)	5m 0s
compiler (clang-8, ubuntu-20.04)	4m 42s
compiler (clang-9, ubuntu-20.04)	4m 55s
compiler (clang-10, ubuntu-20.04)	4m 41s
compiler (clang-11, ubuntu-20.04)	4m 38s
compiler (clang-12, ubuntu-20.04)	4m 44s
compiler (clang-13, ubuntu-22.04)	5m 23s
compiler (clang-14, ubuntu-22.04)	4m 58s
compiler (clang-15, ubuntu-22.04, jammy)	5m 2s
compiler (clang-16, ubuntu-22.04, jammy)	5m 22s
compiler (clang-17, ubuntu-22.04, jammy)	5m 5s
	1h 32m 58s

Provide feedback