Hack around cliargs to provide "help" flag #732
Merged
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Fixes #697
This change adds a check on the error returned from the
cliargs
library, and provides a "help" argument to the consumer code inbusted/runner.lua
.It is based on the workaround used with the same library here: https://github.com/sile-typesetter/sile/pull/1737/files
except that the code in
busted/runner.lua
probably won't need to change ifcliargs
ever supports adding a--help
flag in the "correct" way.