fix(doc): don't show the opening message when --path is used #407

Job	Run time
build-freebsd	28m 37s
build-all-features (x86_64-unknown-linux-gnu)	13m 33s
build-linux-master	0s
build-linux-pr (dev, x86_64-unknown-linux-gnu)	6m 38s
build-linux-stable	0s
build-linux-pr (dev, armv7-unknown-linux-gnueabihf)	57s
build-macos-aarch64 (dev, aarch64-apple-darwin)	12m 53s
build-linux-pr (dev, aarch64-linux-android)	1m 6s
build-macos-x86_64 (dev, x86_64-apple-darwin)	11m 32s
build-windows-master	0s
build-macos-aarch64 (release, aarch64-apple-darwin)	1m 30s
build-linux-pr (release, x86_64-unknown-linux-gnu)	2m 17s
build-macos-x86_64 (release, x86_64-apple-darwin)	3m 54s
build-linux-pr (release, armv7-unknown-linux-gnueabihf)	1m 50s
build-windows-pr (dev, x86_64-pc-windows-msvc)	10m 22s
build-windows-stable	0s
build-linux-pr (release, aarch64-linux-android)	2m 0s
build-windows-pr (release, x86_64-pc-windows-msvc)	4m 33s
check	37s
doc	3s
conclusion	1s
	1h 42m 23s

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