add clap requires to flags that depent on --report #111
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While playing around with
et
I was wondering why--human
had no effect until I noticed that it's supposed to be used in combination with--report
.This adds the
requires
tag to--human
and--file-name
in order to print a useful error message when these options are used without--report
.A better alternative approach would be to implement something like:
et --report=human,file-name
, but I think that's only possible with clap's Builder API.