Add usage example for urfave_cli_no_docs
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#1604
Merged
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What type of PR is this?
What this PR does / why we need it:
I haven't used custom build flags, so it was not obvious for me how to use it. I thought I can specify it in go code, but it came out that it can only be set from command line.
Which issue(s) this PR fixes:
Not really fixes, but relates to #1594
Special notes for your reviewer:
Would be nice to link
ToMarkdown
andToMan
to usage examples as I don't really get where these can be useful.