Zbigniew Jędrzejewski-Szmek
75312ada53
Fixes #20189. We would only log at debug level and return failure, which looks like a noop for the user. ('help' accepts multiple arguments and will show multiple concatenated man pages in that case. Actually, it will also show multiple concatenated man pages if the Documentation= setting lists multiple pages. I don't think it's very terribly useful, but, meh, I don't think we can do much better. If a user requests a help for a two services, one known and one unknown, there'll now be a line in the output. It's not very user friendly, but not exactly wrong too.)
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