Add log header to assembly output #125

Job	Run time
ci (tpb, ubuntu-22.04, --pb --threads --enable-libffi, test-some-fast)	29m 2s
ci (a6osx, macos-12)	17m 21s
ci (ta6osx, macos-12)	24m 31s
ci (i3le, ubuntu-22.04)	12m 52s
ci (ti3le, ubuntu-22.04)	16m 16s
ci (a6le, ubuntu-22.04)	9m 4s
ci (ta6le, ubuntu-22.04)	12m 3s
ci (ta6le, ubuntu-22.04, reboot, -m=ta6le --force, re.boot SCHEME="chezscheme", test-some-fast)	8m 20s
ci (i3nt, windows-2022, vs)	12m 3s
ci (ti3nt, windows-2022, vs)	14m 44s
ci (a6nt, windows-2022, vs)	12m 36s
ci (ta6nt, windows-2022, vs)	15m 55s
ci (ta6nt, windows-2022, gcc)	13m 48s
	3h 18m 35s

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