fix some typos #17

Job	Run time
ci (tpb, ubuntu-22.04, --pb --threads --enable-libffi, test-some-fast)	42m 2s
ci (a6osx, macos-12)	16m 35s
ci (ta6osx, macos-12)	24m 45s
ci (i3le, ubuntu-22.04)	19m 12s
ci (ti3le, ubuntu-22.04)	21m 31s
ci (a6le, ubuntu-22.04)	16m 41s
ci (ta6le, ubuntu-22.04)	18m 45s
ci (ta6le, ubuntu-22.04, reboot, -m=ta6le --force, re.boot SCHEME="chezscheme", test-some-fast)	15m 47s
ci (i3nt, windows-2022, vs)	29m 14s
ci (ti3nt, windows-2022, vs)	41m 24s
ci (a6nt, windows-2022, vs)	32m 19s
ci (ta6nt, windows-2022, vs)	42m 7s
ci (ta6nt, windows-2022, gcc)	23m 20s
	5h 43m 42s

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