B2 path in help fix #1144

Job	Run time
lint	42s
build	30s
cleanup_buckets	20s
test-linux-bundle	8m 15s
test-windows-bundle (windows-2019)	10m 41s
test-docker	10m 22s
test-windows-bundle (windows-latest)	10m 10s
test (ubuntu-latest, 3.7)	5m 2s
test (ubuntu-latest, 3.8)	1m 2s
test (ubuntu-latest, 3.9)	1m 8s
test (ubuntu-latest, 3.10)	1m 4s
test (ubuntu-latest, 3.11)	1m 1s
test (ubuntu-latest, 3.12)	8m 48s
test (ubuntu-latest, pypy3.9)	3m 35s
test (ubuntu-latest, pypy3.10)	25m 34s
test (macos-latest, 3.7)	12m 46s
test (macos-latest, 3.8)	1m 23s
test (macos-latest, 3.9)	2m 49s
test (macos-latest, 3.10)	1m 15s
test (macos-latest, 3.11)	2m 13s
test (macos-latest, 3.12)	20m 50s
test (macos-latest, pypy3.9)	3m 46s
test (windows-latest, 3.7)	20m 53s
test (windows-latest, 3.8)	1m 44s
test (windows-latest, 3.9)	1m 51s
test (windows-latest, 3.10)	1m 42s
test (windows-latest, 3.11)	1m 54s
test (windows-latest, 3.12)	10m 51s
test (windows-latest, pypy3.9)	7m 42s
doc	54s
	3h 0m 47s

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